22200421421420 has 48 divisors (see below), whose sum is σ = 51195962877696. Its totient is φ = 8019417720000.

The previous prime is 22200421421419. The next prime is 22200421421441. The reversal of 22200421421420 is 2412412400222.

It is a super-2 number, since 2×22200421421420² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22200421421420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334109186 + ... + 334175625.

It is an arithmetic number, because the mean of its divisors is an integer number (1066582559952).

Almost surely, 2^{22200421421420} is an apocalyptic number.

22200421421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200421421420 is an abundant number, since it is smaller than the sum of its proper divisors (28995541456276).

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

22200421421420 is a wasteful number, since it uses less digits than its factorization.

22200421421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668284982 (or 668284980 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 22200421421420 its reverse (2412412400222), we get a palindrome (24612833821642).

The spelling of 22200421421420 in words is "twenty-two trillion, two hundred billion, four hundred twenty-one million, four hundred twenty-one thousand, four hundred twenty".