22112012112212 has 24 divisors (see below), whose sum is σ = 44697008442240. Its totient is φ = 9459684325760.

The previous prime is 22112012112199. The next prime is 22112012112277. The reversal of 22112012112212 is 21221121021122.

It is a super-2 number, since 2×22112012112212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14780756012 + ... + 14780757507.

It is an arithmetic number, because the mean of its divisors is an integer number (1862375351760).

Almost surely, 2^{22112012112212} is an apocalyptic number.

22112012112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22112012112212 is an abundant number, since it is smaller than the sum of its proper divisors (22584996330028).

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

22112012112212 is a wasteful number, since it uses less digits than its factorization.

22112012112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29561513551 (or 29561513549 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22112012112212 its reverse (21221121021122), we get a palindrome (43333133133334).

The spelling of 22112012112212 in words is "twenty-two trillion, one hundred twelve billion, twelve million, one hundred twelve thousand, two hundred twelve".