20212269511952 has 20 divisors (see below), whose sum is σ = 44755739633856. Its totient is φ = 8662401219360.

The previous prime is 20212269511913. The next prime is 20212269511969. The reversal of 20212269511952 is 25911596221202.

It is a junction number, because it is equal to n+sod(n) for n = 20212269511897 and 20212269511906.

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, 90233345924 + ... + 90233346147.

Almost surely, 2^{20212269511952} is an apocalyptic number.

It is an amenable number.

20212269511952 is an abundant number, since it is smaller than the sum of its proper divisors (24543470121904).

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

20212269511952 is a wasteful number, since it uses less digits than its factorization.

20212269511952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180466692086 (or 180466692080 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 20212269511952 in words is "twenty trillion, two hundred twelve billion, two hundred sixty-nine million, five hundred eleven thousand, nine hundred fifty-two".