22121002011112 has 16 divisors (see below), whose sum is σ = 41476944386340. Its totient is φ = 11060483508096.

The previous prime is 22121002011071. The next prime is 22121002011167. The reversal of 22121002011112 is 21111020012122.

It can be written as a sum of positive squares in 2 ways, for example, as 21163919381476 + 957082629636 = 4600426^2 + 978306^2 .

It is a super-2 number, since 2×22121002011112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4327158 + ... + 7935130.

Almost surely, 2^{22121002011112} is an apocalyptic number.

It is an amenable number.

22121002011112 is a deficient number, since it is larger than the sum of its proper divisors (19355942375228).

22121002011112 is a wasteful number, since it uses less digits than its factorization.

22121002011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374372 (or 4374368 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121002011112 its reverse (21111020012122), we get a palindrome (43232022023234).

The spelling of 22121002011112 in words is "twenty-two trillion, one hundred twenty-one billion, two million, eleven thousand, one hundred twelve".