212030231100 has 72 divisors (see below), whose sum is σ = 640146944640. Its totient is φ = 54083071680.

The previous prime is 212030231089. The next prime is 212030231117. The reversal of 212030231100 is 1132030212.

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 212030231100.

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, 15357610 + ... + 15371409.

Almost surely, 2^212030231100 is an apocalyptic number.

212030231100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212030231100 is an abundant number, since it is smaller than the sum of its proper divisors (428116713540).

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

212030231100 is a wasteful number, since it uses less digits than its factorization.

212030231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30729059 (or 30729052 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212030231100 its reverse (1132030212), we get a palindrome (213162261312).

The spelling of 212030231100 in words is "two hundred twelve billion, thirty million, two hundred thirty-one thousand, one hundred".