202120122222012 has 48 divisors (see below), whose sum is σ = 502536205049760. Its totient is φ = 63006347569152.

The previous prime is 202120122221977. The next prime is 202120122222013. The reversal of 202120122222012 is 210222221021202.

It is a self number, because there is not a number n which added to its sum of digits gives 202120122222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120122222013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3155333937 + ... + 3155397992.

It is an arithmetic number, because the mean of its divisors is an integer number (10469504271870).

Almost surely, 2^{202120122222012} is an apocalyptic number.

It is an amenable number.

202120122222012 is an abundant number, since it is smaller than the sum of its proper divisors (300416082827748).

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

202120122222012 is a wasteful number, since it uses less digits than its factorization.

202120122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310732110 (or 6310732108 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202120122222012 its reverse (210222221021202), we get a palindrome (412342343243214).

The spelling of 202120122222012 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".