220121012111202 has 48 divisors (see below), whose sum is σ = 489848231428920. Its totient is φ = 71386313112576.

The previous prime is 220121012111093. The next prime is 220121012111249. The reversal of 220121012111202 is 202111210121022.

220121012111202 is a `hidden beast` number, since 220 + 1 + 210 + 1 + 21 + 11 + 202 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 205006870799721 + 15114141311481 = 14318061^2 + 3887691^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1192624 + ... + 21015812.

Almost surely, 2^{220121012111202} is an apocalyptic number.

220121012111202 is an abundant number, since it is smaller than the sum of its proper divisors (269727219317718).

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

220121012111202 is a wasteful number, since it uses less digits than its factorization.

220121012111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19839907 (or 19839904 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220121012111202 its reverse (202111210121022), we get a palindrome (422232222232224).

The spelling of 220121012111202 in words is "two hundred twenty trillion, one hundred twenty-one billion, twelve million, one hundred eleven thousand, two hundred two".