212020121022112 has 48 divisors (see below), whose sum is σ = 449550919401192. Its totient is φ = 97849456312320.

The previous prime is 212020121022071. The next prime is 212020121022137. The reversal of 212020121022112 is 211220121020212.

It can be written as a sum of positive squares in 4 ways, for example, as 101750716168336 + 110269404853776 = 10087156^2 + 10500924^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212020121022112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8769393 + ... + 22381744.

Almost surely, 2^{212020121022112} is an apocalyptic number.

It is an amenable number.

212020121022112 is an abundant number, since it is smaller than the sum of its proper divisors (237530798379080).

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

212020121022112 is a wasteful number, since it uses less digits than its factorization.

212020121022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31167521 (or 31167513 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212020121022112 its reverse (211220121020212), we get a palindrome (423240242042324).

The spelling of 212020121022112 in words is "two hundred twelve trillion, twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred twelve".