22221002022220 has 24 divisors (see below), whose sum is σ = 47031538143744. Its totient is φ = 8818413399936.

The previous prime is 22221002022217. The next prime is 22221002022259. The reversal of 22221002022220 is 2222020012222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374210457 + ... + 4374215536.

It is an arithmetic number, because the mean of its divisors is an integer number (1959647422656).

Almost surely, 2^{22221002022220} is an apocalyptic number.

22221002022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221002022220 is an abundant number, since it is smaller than the sum of its proper divisors (24810536121524).

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

22221002022220 is a wasteful number, since it uses less digits than its factorization.

22221002022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748426129 (or 8748426127 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22221002022220 its reverse (2222020012222), we get a palindrome (24443022034442).

The spelling of 22221002022220 in words is "twenty-two trillion, two hundred twenty-one billion, two million, twenty-two thousand, two hundred twenty".