202222200211220 has 144 divisors (see below), whose sum is σ = 496347799828608. Its totient is φ = 69004485930240.

The previous prime is 202222200211193. The next prime is 202222200211261. The reversal of 202222200211220 is 22112002222202.

It is a super-2 number, since 2×202222200211220² (a number of 29 digits) contains 22 as substring.

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 = 202222200211192 and 202222200211201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198513299 + ... + 199529381.

It is an arithmetic number, because the mean of its divisors is an integer number (3446859721032).

Almost surely, 2^{202222200211220} is an apocalyptic number.

202222200211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202222200211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248173899914304).

202222200211220 is an abundant number, since it is smaller than the sum of its proper divisors (294125599617388).

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

202222200211220 is a wasteful number, since it uses less digits than its factorization.

202222200211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017070 (or 1017061 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202222200211220 its reverse (22112002222202), we get a palindrome (224334202433422).

The spelling of 202222200211220 in words is "two hundred two trillion, two hundred twenty-two billion, two hundred million, two hundred eleven thousand, two hundred twenty".