20302220020 has 12 divisors (see below), whose sum is σ = 42634662084. Its totient is φ = 8120888000.

The previous prime is 20302220017. The next prime is 20302220041. The reversal of 20302220020 is 2002220302.

It can be written as a sum of positive squares in 2 ways, for example, as 4070950416 + 16231269604 = 63804^2 + 127402^2 .

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, 507555481 + ... + 507555520.

It is an arithmetic number, because the mean of its divisors is an integer number (3552888507).

Almost surely, 2^20302220020 is an apocalyptic number.

20302220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302220020 is an abundant number, since it is smaller than the sum of its proper divisors (22332442064).

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

20302220020 is a wasteful number, since it uses less digits than its factorization.

20302220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015111010 (or 1015111008 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

Adding to 20302220020 its reverse (2002220302), we get a palindrome (22304440322).

The spelling of 20302220020 in words is "twenty billion, three hundred two million, two hundred twenty thousand, twenty".