202110211202020 has 96 divisors (see below), whose sum is σ = 495106347286656. Its totient is φ = 68486543616000.

The previous prime is 202110211201957. The next prime is 202110211202101. The reversal of 202110211202020 is 20202112011202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202110211201985 and 202110211202003.

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, 267147822 + ... + 267903301.

It is an arithmetic number, because the mean of its divisors is an integer number (5157357784236).

Almost surely, 2^{202110211202020} is an apocalyptic number.

202110211202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202110211202020 is an abundant number, since it is smaller than the sum of its proper divisors (292996136084636).

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

202110211202020 is a wasteful number, since it uses less digits than its factorization.

202110211202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535051261 (or 535051259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202110211202020 its reverse (20202112011202), we get a palindrome (222312323213222).

The spelling of 202110211202020 in words is "two hundred two trillion, one hundred ten billion, two hundred eleven million, two hundred two thousand, twenty".