20021120102012 has 24 divisors (see below), whose sum is σ = 35051484868512. Its totient is φ = 10006410513600.

The previous prime is 20021120101993. The next prime is 20021120102057. The reversal of 20021120102012 is 21020102112002.

It is a congruent number.

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, 330018962 + ... + 330079622.

It is an arithmetic number, because the mean of its divisors is an integer number (1460478536188).

Almost surely, 2^{20021120102012} is an apocalyptic number.

It is an amenable number.

20021120102012 is a deficient number, since it is larger than the sum of its proper divisors (15030364766500).

20021120102012 is a wasteful number, since it uses less digits than its factorization.

20021120102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93509 (or 93507 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021120102012 its reverse (21020102112002), we get a palindrome (41041222214014).

The spelling of 20021120102012 in words is "twenty trillion, twenty-one billion, one hundred twenty million, one hundred two thousand, twelve".