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2000222221 = 67293101891
BaseRepresentation
bin111011100111000…
…1111100000001101
312011101202211001111
41313032033200031
513044024102341
6530251412021
7100365415444
oct16716174015
95141684044
102000222221
11937089618
12479a54011
1325b52455a
1414d915d5b
15ba908681
hex7738f80d

2000222221 has 8 divisors (see below), whose sum is σ = 2037024864. Its totient is φ = 1963624080.

The previous prime is 2000222219. The next prime is 2000222239. The reversal of 2000222221 is 1222220002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000222221 - 21 = 2000222219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000222821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31315 + ... + 70576.

It is an arithmetic number, because the mean of its divisors is an integer number (254628108).

Almost surely, 22000222221 is an apocalyptic number.

It is an amenable number.

2000222221 is a deficient number, since it is larger than the sum of its proper divisors (36802643).

2000222221 is a wasteful number, since it uses less digits than its factorization.

2000222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102251.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2000222221 is about 44723.8439872961. The cubic root of 2000222221 is about 1259.9677116527.

Adding to 2000222221 its reverse (1222220002), we get a palindrome (3222442223).

The spelling of 2000222221 in words is "two billion, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 67 293 19631 101891 6826697 29854063 2000222221