1002111222 has 32 divisors (see below), whose sum is σ = 2304271872. Its totient is φ = 284601024.

The previous prime is 1002111203. The next prime is 1002111277. The reversal of 1002111222 is 2221112001.

1002111222 is a modest number, since divided by 111222 gives 1002 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1002111198 and 1002111207.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 64423 + ... + 78450.

It is an arithmetic number, because the mean of its divisors is an integer number (72008496).

Almost surely, 2^1002111222 is an apocalyptic number.

1002111222 is an abundant number, since it is smaller than the sum of its proper divisors (1302160650).

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

1002111222 is a wasteful number, since it uses less digits than its factorization.

1002111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143052.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1002111222 is about 31656.1403522287. The cubic root of 1002111222 is about 1000.7032459958.

Adding to 1002111222 its reverse (2221112001), we get a palindrome (3223223223).

The spelling of 1002111222 in words is "one billion, two million, one hundred eleven thousand, two hundred twenty-two".