202020102001020 has 96 divisors (see below), whose sum is σ = 566866135987200. Its totient is φ = 53756822237184.

The previous prime is 202020102000973. The next prime is 202020102001051. The reversal of 202020102001020 is 20100201020202.

It is a super-2 number, since 2×202020102001020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202020102000987 and 202020102001005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349445361 + ... + 350022999.

It is an arithmetic number, because the mean of its divisors is an integer number (5904855583200).

Almost surely, 2^{202020102001020} is an apocalyptic number.

202020102001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020102001020 is an abundant number, since it is smaller than the sum of its proper divisors (364846033986180).

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

202020102001020 is a wasteful number, since it uses less digits than its factorization.

202020102001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590107 (or 590105 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202020102001020 its reverse (20100201020202), we get a palindrome (222120303021222).

The spelling of 202020102001020 in words is "two hundred two trillion, twenty billion, one hundred two million, one thousand, twenty".