20212131322012 has 48 divisors (see below), whose sum is σ = 41535327456000. Its totient is φ = 8425533283200.

The previous prime is 20212131322003. The next prime is 20212131322021. The reversal of 20212131322012 is 21022313121202.

It is an interprime number because it is at equal distance from previous prime (20212131322003) and next prime (20212131322021).

It is a congruent number.

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, 26215762 + ... + 26975737.

It is an arithmetic number, because the mean of its divisors is an integer number (865319322000).

Almost surely, 2^{20212131322012} is an apocalyptic number.

It is an amenable number.

20212131322012 is an abundant number, since it is smaller than the sum of its proper divisors (21323196133988).

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

20212131322012 is a wasteful number, since it uses less digits than its factorization.

20212131322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53191882 (or 53191880 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20212131322012 its reverse (21022313121202), we get a palindrome (41234444443214).

The spelling of 20212131322012 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, twelve".