211233230012 has 24 divisors (see below), whose sum is σ = 422609206656. Its totient is φ = 90497938608.

The previous prime is 211233230003. The next prime is 211233230027. The reversal of 211233230012 is 210032332112.

It is a super-2 number, since 2×211233230012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1190078 + ... + 1356005.

It is an arithmetic number, because the mean of its divisors is an integer number (17608716944).

Almost surely, 2^211233230012 is an apocalyptic number.

It is an amenable number.

211233230012 is an abundant number, since it is smaller than the sum of its proper divisors (211375976644).

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

211233230012 is a wasteful number, since it uses less digits than its factorization.

211233230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549057 (or 2549055 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211233230012 its reverse (210032332112), we get a palindrome (421265562124).

The spelling of 211233230012 in words is "two hundred eleven billion, two hundred thirty-three million, two hundred thirty thousand, twelve".