212022020121012 has 18 divisors (see below), whose sum is σ = 535944550861538. Its totient is φ = 70674006706992.

The previous prime is 212022020120983. The next prime is 212022020121031. The reversal of 212022020121012 is 210121020220212.

It is a happy number.

212022020121012 is a `hidden beast` number, since 2 + 1 + 20 + 220 + 201 + 210 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110465691390756 + 101556328730256 = 10510266^2 + 10077516^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2944750279423 + ... + 2944750279494.

Almost surely, 2^{212022020121012} is an apocalyptic number.

It is an amenable number.

212022020121012 is an abundant number, since it is smaller than the sum of its proper divisors (323922530740526).

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

212022020121012 is a wasteful number, since it uses less digits than its factorization.

212022020121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889500558927 (or 5889500558922 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212022020121012 its reverse (210121020220212), we get a palindrome (422143040341224).

The spelling of 212022020121012 in words is "two hundred twelve trillion, twenty-two billion, twenty million, one hundred twenty-one thousand, twelve".