22021220021202 has 48 divisors (see below), whose sum is σ = 49835748100320. Its totient is φ = 7287597970272.

The previous prime is 22021220021201. The next prime is 22021220021219. The reversal of 22021220021202 is 20212002212022.

22021220021202 is a `hidden beast` number, since 220 + 2 + 1 + 220 + 0 + 21 + 202 = 666.

It is a super-4 number, since 4×22021220021202⁴ (a number of 54 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22021220021201) 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, 162922203 + ... + 163057310.

It is an arithmetic number, because the mean of its divisors is an integer number (1038244752090).

Almost surely, 2^{22021220021202} is an apocalyptic number.

22021220021202 is an abundant number, since it is smaller than the sum of its proper divisors (27814528079118).

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

22021220021202 is a wasteful number, since it uses less digits than its factorization.

22021220021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325979669 (or 325979657 counting only the distinct ones).

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

Adding to 22021220021202 its reverse (20212002212022), we get a palindrome (42233222233224).

The spelling of 22021220021202 in words is "twenty-two trillion, twenty-one billion, two hundred twenty million, twenty-one thousand, two hundred two".