22221220002002 has 32 divisors (see below), whose sum is σ = 38384802415872. Its totient is φ = 9450607325184.

The previous prime is 22221220001999. The next prime is 22221220002011. The reversal of 22221220002002 is 20020002212222.

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, 3572498 + ... + 7563410.

It is an arithmetic number, because the mean of its divisors is an integer number (1199525075496).

Almost surely, 2^{22221220002002} is an apocalyptic number.

22221220002002 is a deficient number, since it is larger than the sum of its proper divisors (16163582413870).

22221220002002 is a wasteful number, since it uses less digits than its factorization.

22221220002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993962.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22221220002002 its reverse (20020002212222), we get a palindrome (42241222214224).

The spelling of 22221220002002 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty million, two thousand, two".