211112011028 has 12 divisors (see below), whose sum is σ = 369514384512. Its totient is φ = 105536472600.

The previous prime is 211112011021. The next prime is 211112011049. The reversal of 211112011028 is 820110211112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112011021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4858898 + ... + 4902153.

It is an arithmetic number, because the mean of its divisors is an integer number (30792865376).

Almost surely, 2^211112011028 is an apocalyptic number.

It is an amenable number.

211112011028 is a deficient number, since it is larger than the sum of its proper divisors (158402373484).

211112011028 is a wasteful number, since it uses less digits than its factorization.

211112011028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766462 (or 9766460 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 211112011028 in words is "two hundred eleven billion, one hundred twelve million, eleven thousand, twenty-eight".