22012120001112 has 128 divisors (see below), whose sum is σ = 57124932480000. Its totient is φ = 7059849947136.

The previous prime is 22012120001057. The next prime is 22012120001129. The reversal of 22012120001112 is 21110002121022.

It is a junction number, because it is equal to n+sod(n) for n = 22012120001091 and 22012120001100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692062064 + ... + 1692075072.

It is an arithmetic number, because the mean of its divisors is an integer number (446288535000).

Almost surely, 2^{22012120001112} 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 22012120001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28562466240000).

22012120001112 is an abundant number, since it is smaller than the sum of its proper divisors (35112812478888).

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

22012120001112 is a wasteful number, since it uses less digits than its factorization.

22012120001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21273 (or 21269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22012120001112 its reverse (21110002121022), we get a palindrome (43122122122134).

The spelling of 22012120001112 in words is "twenty-two trillion, twelve billion, one hundred twenty million, one thousand, one hundred twelve".