22212222122112 has 64 divisors (see below), whose sum is σ = 64364961843360. Its totient is φ = 6730976399360.

The previous prime is 22212222122087. The next prime is 22212222122119. The reversal of 22212222122112 is 21122122221222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22212222122119) by changing a digit.

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, 2629283433 + ... + 2629291880.

Almost surely, 2^{22212222122112} is an apocalyptic number.

22212222122112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22212222122112 is an abundant number, since it is smaller than the sum of its proper divisors (42152739721248).

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

22212222122112 is a wasteful number, since it uses less digits than its factorization.

22212222122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258575341 (or 5258575329 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

Adding to 22212222122112 its reverse (21122122221222), we get a palindrome (43334344343334).

The spelling of 22212222122112 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twelve".