22111220012002 has 32 divisors (see below), whose sum is σ = 38318685863040. Its totient is φ = 9457287002880.

The previous prime is 22111220011967. The next prime is 22111220012039. The reversal of 22111220012002 is 20021002211122.

It is a happy number.

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, 4711102 + ... + 8149657.

It is an arithmetic number, because the mean of its divisors is an integer number (1197458933220).

Almost surely, 2^{22111220012002} is an apocalyptic number.

22111220012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22111220012002 is a deficient number, since it is larger than the sum of its proper divisors (16207465851038).

22111220012002 is a wasteful number, since it uses less digits than its factorization.

22111220012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865386.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22111220012002 its reverse (20021002211122), we get a palindrome (42132222223124).

The spelling of 22111220012002 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, twelve thousand, two".