212122331020 has 12 divisors (see below), whose sum is σ = 445456895184. Its totient is φ = 84848932400.

The previous prime is 212122331017. The next prime is 212122331051. The reversal of 212122331020 is 20133221212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5303058256 + ... + 5303058295.

It is an arithmetic number, because the mean of its divisors is an integer number (37121407932).

Almost surely, 2^212122331020 is an apocalyptic number.

212122331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122331020 is an abundant number, since it is smaller than the sum of its proper divisors (233334564164).

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

212122331020 is a wasteful number, since it uses less digits than its factorization.

212122331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606116560 (or 10606116558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212122331020 its reverse (20133221212), we get a palindrome (232255552232).

The spelling of 212122331020 in words is "two hundred twelve billion, one hundred twenty-two million, three hundred thirty-one thousand, twenty".