212231110020 has 48 divisors (see below), whose sum is σ = 594332242560. Its totient is φ = 56586854656.

The previous prime is 212231109983. The next prime is 212231110043. The reversal of 212231110020 is 20011132212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174904 + ... + 674576.

It is an arithmetic number, because the mean of its divisors is an integer number (12381921720).

Almost surely, 2^212231110020 is an apocalyptic number.

212231110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212231110020 is an abundant number, since it is smaller than the sum of its proper divisors (382101132540).

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

212231110020 is a wasteful number, since it uses less digits than its factorization.

212231110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506764 (or 506762 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212231110020 its reverse (20011132212), we get a palindrome (232242242232).

The spelling of 212231110020 in words is "two hundred twelve billion, two hundred thirty-one million, one hundred ten thousand, twenty".