22112110221222 has 64 divisors (see below), whose sum is σ = 51048223211520. Its totient is φ = 6254774629536.

The previous prime is 22112110221221. The next prime is 22112110221241. The reversal of 22112110221222 is 22212201121122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112110221221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4771878 + ... + 8185049.

It is an arithmetic number, because the mean of its divisors is an integer number (797628487680).

Almost surely, 2^{22112110221222} is an apocalyptic number.

22112110221222 is an abundant number, since it is smaller than the sum of its proper divisors (28936112990298).

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

22112110221222 is a wasteful number, since it uses less digits than its factorization.

22112110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12957345.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22112110221222 its reverse (22212201121122), we get a palindrome (44324311342344).

The spelling of 22112110221222 in words is "twenty-two trillion, one hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".