20202002102020 has 24 divisors (see below), whose sum is σ = 42502622559768. Its totient is φ = 8065864051200.

The previous prime is 20202002101999. The next prime is 20202002102027. The reversal of 20202002102020 is 2020120020202.

It can be written as a sum of positive squares in 4 ways, for example, as 1436488543296 + 18765513558724 = 1198536^2 + 4331918^2 .

It is not an unprimeable number, because it can be changed into a prime (20202002102027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933538261 + ... + 933559900.

It is an arithmetic number, because the mean of its divisors is an integer number (1770942606657).

Almost surely, 2^{20202002102020} is an apocalyptic number.

20202002102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202002102020 is an abundant number, since it is smaller than the sum of its proper divisors (22300620457748).

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

20202002102020 is a wasteful number, since it uses less digits than its factorization.

20202002102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867098711 (or 1867098709 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20202002102020 its reverse (2020120020202), we get a palindrome (22222122122222).

The spelling of 20202002102020 in words is "twenty trillion, two hundred two billion, two million, one hundred two thousand, twenty".