20022520015312 has 10 divisors (see below), whose sum is σ = 38793632529698. Its totient is φ = 10011260007648.

The previous prime is 20022520015219. The next prime is 20022520015319. The reversal of 20022520015312 is 21351002522002.

It can be written as a sum of positive squares in only one way, i.e., 19601729083456 + 420790931856 = 4427384^2 + 648684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022520015319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625703750463 + ... + 625703750494.

Almost surely, 2^{20022520015312} is an apocalyptic number.

It is an amenable number.

20022520015312 is a deficient number, since it is larger than the sum of its proper divisors (18771112514386).

20022520015312 is a wasteful number, since it uses less digits than its factorization.

20022520015312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251407500965 (or 1251407500959 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20022520015312 its reverse (21351002522002), we get a palindrome (41373522537314).

The spelling of 20022520015312 in words is "twenty trillion, twenty-two billion, five hundred twenty million, fifteen thousand, three hundred twelve".