22000012122112 has 96 divisors (see below), whose sum is σ = 46367226360000. Its totient is φ = 10406943203328.

The previous prime is 22000012122097. The next prime is 22000012122149. The reversal of 22000012122112 is 21122121000022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28373439 + ... + 29138497.

It is an arithmetic number, because the mean of its divisors is an integer number (482991941250).

Almost surely, 2^{22000012122112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000012122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23183613180000).

22000012122112 is an abundant number, since it is smaller than the sum of its proper divisors (24367214237888).

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

22000012122112 is an equidigital number, since it uses as much as digits as its factorization.

22000012122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765839 (or 765819 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22000012122112 its reverse (21122121000022), we get a palindrome (43122133122134).

The spelling of 22000012122112 in words is "twenty-two trillion, twelve million, one hundred twenty-two thousand, one hundred twelve".