202201202102220 has 72 divisors (see below), whose sum is σ = 640010761449696. Its totient is φ = 51575958796032.

The previous prime is 202201202102213. The next prime is 202201202102227. The reversal of 202201202102220 is 22201202102202.

202201202102220 is a `hidden beast` number, since 2 + 0 + 220 + 12 + 0 + 210 + 2 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (202201202102213) and next prime (202201202102227).

It is a super-2 number, since 2×202201202102220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202201202102193 and 202201202102202.

It is not an unprimeable number, because it can be changed into a prime (202201202102227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24420430897 + ... + 24420439176.

It is an arithmetic number, because the mean of its divisors is an integer number (8889038353468).

Almost surely, 2^{202201202102220} is an apocalyptic number.

202201202102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201202102220 is an abundant number, since it is smaller than the sum of its proper divisors (437809559347476).

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

202201202102220 is a wasteful number, since it uses less digits than its factorization.

202201202102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48840870111 (or 48840870106 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Subtracting from 202201202102220 its sum of digits (18), we obtain a palindrome (202201202102202).

Adding to 202201202102220 its reverse (22201202102202), we get a palindrome (224402404204422).

The spelling of 202201202102220 in words is "two hundred two trillion, two hundred one billion, two hundred two million, one hundred two thousand, two hundred twenty".