212013311100 has 72 divisors (see below), whose sum is σ = 613471568640. Its totient is φ = 56532607680.

The previous prime is 212013311087. The next prime is 212013311149. The reversal of 212013311100 is 1113310212.

It is a happy number.

It is a super-3 number, since 3×212013311100³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212013311100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7190989 + ... + 7220411.

Almost surely, 2^212013311100 is an apocalyptic number.

212013311100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212013311100 is an abundant number, since it is smaller than the sum of its proper divisors (401458257540).

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

212013311100 is a wasteful number, since it uses less digits than its factorization.

212013311100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53459 (or 53452 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 212013311100 its reverse (1113310212), we get a palindrome (213126621312).

The spelling of 212013311100 in words is "two hundred twelve billion, thirteen million, three hundred eleven thousand, one hundred".