20202221120 has 56 divisors (see below), whose sum is σ = 50198145984. Its totient is φ = 7729542656.

The previous prime is 20202221119. The next prime is 20202221131. The reversal of 20202221120 is 2112220202.

It is a junction number, because it is equal to n+sod(n) for n = 20202221095 and 20202221104.

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, 1365074 + ... + 1379793.

It is an arithmetic number, because the mean of its divisors is an integer number (896395464).

Almost surely, 2^20202221120 is an apocalyptic number.

20202221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202221120 is an abundant number, since it is smaller than the sum of its proper divisors (29995924864).

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

20202221120 is a wasteful number, since it uses less digits than its factorization.

20202221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744907 (or 2744897 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20202221120 its reverse (2112220202), we get a palindrome (22314441322).

The spelling of 20202221120 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty".