211112011026 has 48 divisors (see below), whose sum is σ = 530116299648. Its totient is φ = 59468169600.

The previous prime is 211112011021. The next prime is 211112011049. The reversal of 211112011026 is 620110211112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 11790295 + ... + 11808186.

It is an arithmetic number, because the mean of its divisors is an integer number (11044089576).

Almost surely, 2^211112011026 is an apocalyptic number.

211112011026 is an abundant number, since it is smaller than the sum of its proper divisors (319004288622).

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

211112011026 is a wasteful number, since it uses less digits than its factorization.

211112011026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23598567 (or 23598564 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 211112011026 its reverse (620110211112), we get a palindrome (831222222138).

The spelling of 211112011026 in words is "two hundred eleven billion, one hundred twelve million, eleven thousand, twenty-six".