22022121120012 has 96 divisors (see below), whose sum is σ = 61570842278400. Its totient is φ = 6766716407616.

The previous prime is 22022121120007. The next prime is 22022121120029. The reversal of 22022121120012 is 21002112122022.

It is a happy number.

22022121120012 is a `hidden beast` number, since 2 + 20 + 221 + 211 + 200 + 12 = 666.

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

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, 9766962 + ... + 11808377.

It is an arithmetic number, because the mean of its divisors is an integer number (641362940400).

Almost surely, 2^{22022121120012} is an apocalyptic number.

It is an amenable number.

22022121120012 is an abundant number, since it is smaller than the sum of its proper divisors (39548721158388).

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

22022121120012 is a wasteful number, since it uses less digits than its factorization.

22022121120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21576092 (or 21576084 counting only the distinct ones).

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

Adding to 22022121120012 its reverse (21002112122022), we get a palindrome (43024233242034).

The spelling of 22022121120012 in words is "twenty-two trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, twelve".