22002220212112 has 60 divisors (see below), whose sum is σ = 50100416558220. Its totient is φ = 9332311339008.

The previous prime is 22002220212103. The next prime is 22002220212169. The reversal of 22002220212112 is 21121202220022.

It can be written as a sum of positive squares in 2 ways, for example, as 4877719605136 + 17124500606976 = 2208556^2 + 4138176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22002220212112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144584037 + ... + 144736132.

It is an arithmetic number, because the mean of its divisors is an integer number (835006942637).

Almost surely, 2^{22002220212112} is an apocalyptic number.

It is an amenable number.

22002220212112 is an abundant number, since it is smaller than the sum of its proper divisors (28098196346108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22002220212112 is a wasteful number, since it uses less digits than its factorization.

22002220212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289320288 (or 289320275 counting only the distinct ones).

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

Adding to 22002220212112 its reverse (21121202220022), we get a palindrome (43123422432134).

The spelling of 22002220212112 in words is "twenty-two trillion, two billion, two hundred twenty million, two hundred twelve thousand, one hundred twelve".