22000222212112 has 40 divisors (see below), whose sum is σ = 43431348084120. Its totient is φ = 10792148290560.

The previous prime is 22000222212107. The next prime is 22000222212113. The reversal of 22000222212112 is 21121222200022.

It can be written as a sum of positive squares in 4 ways, for example, as 16048164192256 + 5952058019856 = 4006016^2 + 2439684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22000222212112.

It is not an unprimeable number, because it can be changed into a prime (22000222212113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22260564 + ... + 23227852.

It is an arithmetic number, because the mean of its divisors is an integer number (1085783702103).

Almost surely, 2^{22000222212112} is an apocalyptic number.

It is an amenable number.

22000222212112 is a deficient number, since it is larger than the sum of its proper divisors (21431125872008).

22000222212112 is a wasteful number, since it uses less digits than its factorization.

22000222212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994171 (or 994165 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22000222212112 its reverse (21121222200022), we get a palindrome (43121444412134).

The spelling of 22000222212112 in words is "twenty-two trillion, two hundred twenty-two million, two hundred twelve thousand, one hundred twelve".