202101222221120 has 56 divisors (see below), whose sum is σ = 487846049654184. Its totient is φ = 79733084921856.

The previous prime is 202101222221111. The next prime is 202101222221149. The reversal of 202101222221120 is 21122222101202.

It can be written as a sum of positive squares in 4 ways, for example, as 1818268858624 + 200282953362496 = 1348432^2 + 14152136^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 202101222221092 and 202101222221101.

It is a congruent number.

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, 4325773349 + ... + 4325820068.

Almost surely, 2^{202101222221120} is an apocalyptic number.

202101222221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101222221120 is an abundant number, since it is smaller than the sum of its proper divisors (285744827433064).

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

202101222221120 is an equidigital number, since it uses as much as digits as its factorization.

202101222221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651593507 (or 8651593497 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202101222221120 its reverse (21122222101202), we get a palindrome (223223444322322).

The spelling of 202101222221120 in words is "two hundred two trillion, one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".