22101876889 has 3 divisors (see below), whose sum is σ = 22102025557. Its totient is φ = 22101728222.

The previous prime is 22101876869. The next prime is 22101876893. The reversal of 22101876889 is 98867810122.

It is a happy number.

The square root of 22101876889 is 148667.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 22101876889 - 2⁷ = 22101876761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101876809) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74334 + ... + 223000.

Almost surely, 2^22101876889 is an apocalyptic number.

22101876889 is the 148667-th square number.

22101876889 is the 74334-th centered octagonal number.

It is an amenable number.

22101876889 is a deficient number, since it is larger than the sum of its proper divisors (148668).

22101876889 is an frugal number, since it uses more digits than its factorization.

22101876889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297334 (or 148667 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 22101876889 in words is "twenty-two billion, one hundred one million, eight hundred seventy-six thousand, eight hundred eighty-nine".