22111222002002 has 32 divisors (see below), whose sum is σ = 38073877797888. Its totient is φ = 9434010817296.

The previous prime is 22111222001989. The next prime is 22111222002029. The reversal of 22111222002002 is 20020022211122.

It is a happy number.

It is a super-2 number, since 2×22111222002002² (a number of 27 digits) contains 22 as substring.

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, 65957453 + ... + 66291839.

It is an arithmetic number, because the mean of its divisors is an integer number (1189808681184).

Almost surely, 2^{22111222002002} is an apocalyptic number.

22111222002002 is a deficient number, since it is larger than the sum of its proper divisors (15962655795886).

22111222002002 is a wasteful number, since it uses less digits than its factorization.

22111222002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355430.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22111222002002 its reverse (20020022211122), we get a palindrome (42131244213124).

It can be divided in two parts, 2211122 and 2002002, that added together give a palindrome (4213124).

The spelling of 22111222002002 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, two thousand, two".