102211122 has 16 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 31449552.

The previous prime is 102211121. The next prime is 102211147. The reversal of 102211122 is 221112201.

It is a super-2 number, since 2×102211122² = 20894226920997768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102211098 and 102211107.

It is not an unprimeable number, because it can be changed into a prime (102211121) 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, 655122 + ... + 655277.

It is an arithmetic number, because the mean of its divisors is an integer number (13759200).

Almost surely, 2^102211122 is an apocalyptic number.

102211122 is an abundant number, since it is smaller than the sum of its proper divisors (117936078).

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

102211122 is a wasteful number, since it uses less digits than its factorization.

102211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310417.

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

The square root of 102211122 is about 10109.9516319318. The cubic root of 102211122 is about 467.5550138773. Note that the first 3 decimals are identical.

Adding to 102211122 its reverse (221112201), we get a palindrome (323323323).

The spelling of 102211122 in words is "one hundred two million, two hundred eleven thousand, one hundred twenty-two".