22221022022112 has 48 divisors (see below), whose sum is σ = 61400192434560. Its totient is φ = 7017164848512.

The previous prime is 22221022022099. The next prime is 22221022022179. The reversal of 22221022022112 is 21122022012222.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6091287108 + ... + 6091290755.

It is an arithmetic number, because the mean of its divisors is an integer number (1279170675720).

Almost surely, 2^{22221022022112} is an apocalyptic number.

It is an amenable number.

22221022022112 is an abundant number, since it is smaller than the sum of its proper divisors (39179170412448).

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

22221022022112 is a wasteful number, since it uses less digits than its factorization.

22221022022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182577895 (or 12182577887 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22221022022112 its reverse (21122022012222), we get a palindrome (43343044034334).

The spelling of 22221022022112 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-two million, twenty-two thousand, one hundred twelve".