211211022122112 has 64 divisors (see below), whose sum is σ = 562181288846400. Its totient is φ = 70259107912704.

The previous prime is 211211022122083. The next prime is 211211022122129. The reversal of 211211022122112 is 211221220112112.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×211211022122112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564524187 + ... + 564898202.

It is an arithmetic number, because the mean of its divisors is an integer number (8784082638225).

Almost surely, 2^{211211022122112} is an apocalyptic number.

It is an amenable number.

211211022122112 is an abundant number, since it is smaller than the sum of its proper divisors (350970266724288).

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

211211022122112 is a wasteful number, since it uses less digits than its factorization.

211211022122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129422893 (or 1129422881 counting only the distinct ones).

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

Adding to 211211022122112 its reverse (211221220112112), we get a palindrome (422432242234224).

The spelling of 211211022122112 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-two million, one hundred twenty-two thousand, one hundred twelve".