22200222212012 has 48 divisors (see below), whose sum is σ = 44522604302400. Its totient is φ = 9595075387392.

The previous prime is 22200222211991. The next prime is 22200222212033. The reversal of 22200222212012 is 21021222200222.

It is an interprime number because it is at equal distance from previous prime (22200222211991) and next prime (22200222212033).

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, 62923013 + ... + 63274844.

It is an arithmetic number, because the mean of its divisors is an integer number (927554256300).

Almost surely, 2^{22200222212012} is an apocalyptic number.

It is an amenable number.

22200222212012 is an abundant number, since it is smaller than the sum of its proper divisors (22322382090388).

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

22200222212012 is a wasteful number, since it uses less digits than its factorization.

22200222212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126198090 (or 126198088 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22200222212012 its reverse (21021222200222), we get a palindrome (43221444412234).

The spelling of 22200222212012 in words is "twenty-two trillion, two hundred billion, two hundred twenty-two million, two hundred twelve thousand, twelve".