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2011020222 = 231572134841
BaseRepresentation
bin111011111011101…
…1011101110111110
312012011002102010110
41313313123232332
513104310121342
6531315050450
7100556250501
oct16767335676
95164072113
102011020222
11942194292
124815a0a26
132608353c3
14151127138
15bb83cc9c
hex77ddbbbe

2011020222 has 16 divisors (see below), whose sum is σ = 4047660432. Its totient is φ = 666070080.

The previous prime is 2011020149. The next prime is 2011020227. The reversal of 2011020222 is 2220201102.

It is a junction number, because it is equal to n+sod(n) for n = 2011020198 and 2011020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011020227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066479 + ... + 1068362.

It is an arithmetic number, because the mean of its divisors is an integer number (252978777).

Almost surely, 22011020222 is an apocalyptic number.

2011020222 is an abundant number, since it is smaller than the sum of its proper divisors (2036640210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011020222 is a wasteful number, since it uses less digits than its factorization.

2011020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135003.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2011020222 is about 44844.4001186324. The cubic root of 2011020222 is about 1262.2309141514.

Adding to 2011020222 its reverse (2220201102), we get a palindrome (4231221324).

The spelling of 2011020222 in words is "two billion, eleven million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 157 314 471 942 2134841 4269682 6404523 12809046 335170037 670340074 1005510111 2011020222