211222101122112 has 56 divisors (see below), whose sum is σ = 563804126172576. Its totient is φ = 69784292988928.

The previous prime is 211222101122111. The next prime is 211222101122113. The reversal of 211222101122112 is 211221101222112.

It is an interprime number because it is at equal distance from previous prime (211222101122111) and next prime (211222101122113).

It is a super-2 number, since 2×211222101122112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222101122111) 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, 4867744278 + ... + 4867787669.

Almost surely, 2^{211222101122112} is an apocalyptic number.

It is an amenable number.

211222101122112 is an abundant number, since it is smaller than the sum of its proper divisors (352582025050464).

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

211222101122112 is a wasteful number, since it uses less digits than its factorization.

211222101122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9735532075 (or 9735532065 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211222101122112 its reverse (211221101222112), we get a palindrome (422443202344224).

The spelling of 211222101122112 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred one million, one hundred twenty-two thousand, one hundred twelve".