22001222021002 has 64 divisors (see below), whose sum is σ = 38263350859776. Its totient is φ = 9293178470400.

The previous prime is 22001222020969. The next prime is 22001222021021. The reversal of 22001222021002 is 20012022210022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2222116252 + ... + 2222126152.

It is an arithmetic number, because the mean of its divisors is an integer number (597864857184).

Almost surely, 2^{22001222021002} is an apocalyptic number.

22001222021002 is a deficient number, since it is larger than the sum of its proper divisors (16262128838774).

22001222021002 is a wasteful number, since it uses less digits than its factorization.

22001222021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16631.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22001222021002 its reverse (20012022210022), we get a palindrome (42013244231024).

The spelling of 22001222021002 in words is "twenty-two trillion, one billion, two hundred twenty-two million, twenty-one thousand, two".