22212001122120 has 96 divisors (see below), whose sum is σ = 72210498796800. Its totient is φ = 5921436594816.

The previous prime is 22212001122119. The next prime is 22212001122163. The reversal of 22212001122120 is 2122110021222.

It is a happy number.

22212001122120 is a `hidden beast` number, since 2 + 221 + 200 + 1 + 1 + 221 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22212001122093 and 22212001122102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7975042 + ... + 10393521.

It is an arithmetic number, because the mean of its divisors is an integer number (752192695800).

Almost surely, 2^{22212001122120} is an apocalyptic number.

22212001122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212001122120 is an abundant number, since it is smaller than the sum of its proper divisors (49998497674680).

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

22212001122120 is a wasteful number, since it uses less digits than its factorization.

22212001122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18371939 (or 18371932 counting only the distinct ones).

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

Adding to 22212001122120 its reverse (2122110021222), we get a palindrome (24334111143342).

The spelling of 22212001122120 in words is "twenty-two trillion, two hundred twelve billion, one million, one hundred twenty-two thousand, one hundred twenty".