202222121021000 has 32 divisors (see below), whose sum is σ = 473199763191480. Its totient is φ = 80888848408000.

The previous prime is 202222121020991. The next prime is 202222121021003. The reversal of 202222121021000 is 120121222202.

It is a happy number.

202222121021000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24950844186724 + 177271276834276 = 4995082^2 + 13314326^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202222121021000.

It is not an unprimeable number, because it can be changed into a prime (202222121021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101111059511 + ... + 101111061510.

Almost surely, 2^{202222121021000} is an apocalyptic number.

202222121021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202222121021000 is an abundant number, since it is smaller than the sum of its proper divisors (270977642170480).

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

202222121021000 is a wasteful number, since it uses less digits than its factorization.

202222121021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202222121042 (or 202222121028 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202222121021000 its reverse (120121222202), we get a palindrome (202342242243202).

The spelling of 202222121021000 in words is "two hundred two trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty-one thousand".