211122012112 has 80 divisors (see below), whose sum is σ = 477422032320. Its totient is φ = 89423308800.

The previous prime is 211122012007. The next prime is 211122012121. The reversal of 211122012112 is 211210221112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 313513 + ... + 721480.

It is an arithmetic number, because the mean of its divisors is an integer number (5967775404).

Almost surely, 2^211122012112 is an apocalyptic number.

211122012112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211122012112 is an abundant number, since it is smaller than the sum of its proper divisors (266300020208).

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

211122012112 is a wasteful number, since it uses less digits than its factorization.

211122012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035092 (or 1035086 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211122012112 its reverse (211210221112), we get a palindrome (422332233224).

The spelling of 211122012112 in words is "two hundred eleven billion, one hundred twenty-two million, twelve thousand, one hundred twelve".