212420312034020 has 48 divisors (see below), whose sum is σ = 446157581995440. Its totient is φ = 84953854293504.

The previous prime is 212420312033953. The next prime is 212420312034041. The reversal of 212420312034020 is 20430213024212.

It can be written as a sum of positive squares in 8 ways, for example, as 158032253503744 + 54388058530276 = 12571088^2 + 7374826^2 .

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, 6048913502 + ... + 6048948618.

It is an arithmetic number, because the mean of its divisors is an integer number (9294949624905).

Almost surely, 2^{212420312034020} is an apocalyptic number.

212420312034020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212420312034020 is an abundant number, since it is smaller than the sum of its proper divisors (233737269961420).

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

212420312034020 is a wasteful number, since it uses less digits than its factorization.

212420312034020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77312 (or 77310 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212420312034020 its reverse (20430213024212), we get a palindrome (232850525058232).

The spelling of 212420312034020 in words is "two hundred twelve trillion, four hundred twenty billion, three hundred twelve million, thirty-four thousand, twenty".