22202220012012 has 72 divisors (see below), whose sum is σ = 56566891128384. Its totient is φ = 7342271057376.

The previous prime is 22202220011999. The next prime is 22202220012031. The reversal of 22202220012012 is 21021002220222.

It is a super-2 number, since 2×22202220012012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56538 + ... + 6663905.

It is an arithmetic number, because the mean of its divisors is an integer number (785651265672).

Almost surely, 2^{22202220012012} is an apocalyptic number.

It is an amenable number.

22202220012012 is an abundant number, since it is smaller than the sum of its proper divisors (34364671116372).

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

22202220012012 is a wasteful number, since it uses less digits than its factorization.

22202220012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721179 (or 6721174 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22202220012012 its reverse (21021002220222), we get a palindrome (43223222232234).

The spelling of 22202220012012 in words is "twenty-two trillion, two hundred two billion, two hundred twenty million, twelve thousand, twelve".