22012211122000 has 160 divisors (see below), whose sum is σ = 58117204439424. Its totient is φ = 7997134976000.

The previous prime is 22012211121991. The next prime is 22012211122007. The reversal of 22012211122000 is 22111221022.

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 not an unprimeable number, because it can be changed into a prime (22012211122007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 23677959 + ... + 24590041.

Almost surely, 2^{22012211122000} is an apocalyptic number.

22012211122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012211122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29058602219712).

22012211122000 is an abundant number, since it is smaller than the sum of its proper divisors (36104993317424).

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

22012211122000 is a wasteful number, since it uses less digits than its factorization.

22012211122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913214 (or 913198 counting only the distinct ones).

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

Adding to 22012211122000 its reverse (22111221022), we get a palindrome (22034322343022).

The spelling of 22012211122000 in words is "twenty-two trillion, twelve billion, two hundred eleven million, one hundred twenty-two thousand".