20201220132 has 24 divisors (see below), whose sum is σ = 47139767136. Its totient is φ = 6733227648.

The previous prime is 20201220119. The next prime is 20201220157. The reversal of 20201220132 is 23102210202.

It is a happy 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, 121788 + ... + 235020.

It is an arithmetic number, because the mean of its divisors is an integer number (1964156964).

Almost surely, 2^20201220132 is an apocalyptic number.

It is an amenable number.

20201220132 is an abundant number, since it is smaller than the sum of its proper divisors (26938547004).

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

20201220132 is a wasteful number, since it uses less digits than its factorization.

20201220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128107 (or 128105 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20201220132 its reverse (23102210202), we get a palindrome (43303430334).

The spelling of 20201220132 in words is "twenty billion, two hundred one million, two hundred twenty thousand, one hundred thirty-two".