22545533121 has 16 divisors (see below), whose sum is σ = 31045665600. Its totient is φ = 14542417728.

The previous prime is 22545533117. The next prime is 22545533123. The reversal of 22545533121 is 12133554522.

It is not a de Polignac number, because 22545533121 - 2² = 22545533117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22545533123) 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 15 ways as a sum of consecutive naturals, for example, 547486 + ... + 587223.

It is an arithmetic number, because the mean of its divisors is an integer number (1940354100).

Almost surely, 2^22545533121 is an apocalyptic number.

It is an amenable number.

22545533121 is a deficient number, since it is larger than the sum of its proper divisors (8500132479).

22545533121 is a wasteful number, since it uses less digits than its factorization.

22545533121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134928.

The product of its digits is 36000, while the sum is 33.

The spelling of 22545533121 in words is "twenty-two billion, five hundred forty-five million, five hundred thirty-three thousand, one hundred twenty-one".