22112000122212 has 144 divisors (see below), whose sum is σ = 75046788415872. Its totient is φ = 5301578442240.

The previous prime is 22112000122181. The next prime is 22112000122301. The reversal of 22112000122212 is 21222100021122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306768273 + ... + 306840344.

It is an arithmetic number, because the mean of its divisors is an integer number (521158252888).

Almost surely, 2^{22112000122212} is an apocalyptic number.

22112000122212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22112000122212 is an abundant number, since it is smaller than the sum of its proper divisors (52934788293660).

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

22112000122212 is a wasteful number, since it uses less digits than its factorization.

22112000122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613608658 (or 613608653 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22112000122212 its reverse (21222100021122), we get a palindrome (43334100143334).

The spelling of 22112000122212 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-two thousand, two hundred twelve".