22121244120123 has 48 divisors (see below), whose sum is σ = 32166881720064. Its totient is φ = 14649165368640.

The previous prime is 22121244120113. The next prime is 22121244120253. The reversal of 22121244120123 is 32102144212122.

22121244120123 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 12 + 441 + 201 + 2 + 3 = 666.

It is not a de Polignac number, because 22121244120123 - 2⁸ = 22121244119867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121244120113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 918529840 + ... + 918553922.

It is an arithmetic number, because the mean of its divisors is an integer number (670143369168).

Almost surely, 2^{22121244120123} is an apocalyptic number.

22121244120123 is a deficient number, since it is larger than the sum of its proper divisors (10045637599941).

22121244120123 is a wasteful number, since it uses less digits than its factorization.

22121244120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25536 (or 25533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 22121244120123 its reverse (32102144212122), we get a palindrome (54223388332245).

The spelling of 22121244120123 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred forty-four million, one hundred twenty thousand, one hundred twenty-three".