20021133133112 has 16 divisors (see below), whose sum is σ = 37826186646600. Its totient is φ = 9934150027360.

The previous prime is 20021133133103. The next prime is 20021133133171. The reversal of 20021133133112 is 21133133112002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9552066287 + ... + 9552068382.

Almost surely, 2^{20021133133112} is an apocalyptic number.

It is an amenable number.

20021133133112 is a deficient number, since it is larger than the sum of its proper divisors (17805053513488).

20021133133112 is a wasteful number, since it uses less digits than its factorization.

20021133133112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19104134806 (or 19104134802 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20021133133112 its reverse (21133133112002), we get a palindrome (41154266245114).

The spelling of 20021133133112 in words is "twenty trillion, twenty-one billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred twelve".