22212221200002 has 24 divisors (see below), whose sum is σ = 48472712935920. Its totient is φ = 7350807015000.

The previous prime is 22212221199967. The next prime is 22212221200033. The reversal of 22212221200002 is 20000212221222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4438890624 + ... + 4438895627.

It is an arithmetic number, because the mean of its divisors is an integer number (2019696372330).

Almost surely, 2^{22212221200002} is an apocalyptic number.

22212221200002 is an abundant number, since it is smaller than the sum of its proper divisors (26260491735918).

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

22212221200002 is a wasteful number, since it uses less digits than its factorization.

22212221200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877786398 (or 8877786395 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22212221200002 its reverse (20000212221222), we get a palindrome (42212433421224).

The spelling of 22212221200002 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred thousand, two".