211122211211112 has 64 divisors (see below), whose sum is σ = 530194680046080. Its totient is φ = 70055543365632.

The previous prime is 211122211211063. The next prime is 211122211211189. The reversal of 211122211211112 is 211112112221112.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128234808 + ... + 129870744.

It is an arithmetic number, because the mean of its divisors is an integer number (8284291875720).

Almost surely, 2^{211122211211112} is an apocalyptic number.

It is an amenable number.

211122211211112 is an abundant number, since it is smaller than the sum of its proper divisors (319072468834968).

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

211122211211112 is a wasteful number, since it uses less digits than its factorization.

211122211211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660282 (or 1660278 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 211122211211112 its reverse (211112112221112), we get a palindrome (422234323432224).

The spelling of 211122211211112 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred eleven million, two hundred eleven thousand, one hundred twelve".