22212021121010 has 32 divisors (see below), whose sum is σ = 46625816937600. Its totient is φ = 7615550097456.

The previous prime is 22212021120941. The next prime is 22212021121013. The reversal of 22212021121010 is 1012112021222.

It is a self number, because there is not a number n which added to its sum of digits gives 22212021121010.

It is not an unprimeable number, because it can be changed into a prime (22212021121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3237900524 + ... + 3237907383.

It is an arithmetic number, because the mean of its divisors is an integer number (1457056779300).

Almost surely, 2^{22212021121010} is an apocalyptic number.

22212021121010 is an abundant number, since it is smaller than the sum of its proper divisors (24413795816590).

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

22212021121010 is an equidigital number, since it uses as much as digits as its factorization.

22212021121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475807935 (or 6475807921 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22212021121010 its reverse (1012112021222), we get a palindrome (23224133142232).

The spelling of 22212021121010 in words is "twenty-two trillion, two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, ten".