22073081187 has 18 divisors (see below), whose sum is σ = 30421774404. Its totient is φ = 14235550920.

The previous prime is 22073081143. The next prime is 22073081267. The reversal of 22073081187 is 78118037022.

It is not a de Polignac number, because 22073081187 - 2⁶ = 22073081123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22073081287) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7975878 + ... + 7978644.

It is an arithmetic number, because the mean of its divisors is an integer number (1690098578).

Almost surely, 2^22073081187 is an apocalyptic number.

22073081187 is a deficient number, since it is larger than the sum of its proper divisors (8348693217).

22073081187 is an frugal number, since it uses more digits than its factorization.

22073081187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

Multiplying 22073081187 by its product of nonzero digits (37632), we get a square (830654191229184 = 28821072²).

The spelling of 22073081187 in words is "twenty-two billion, seventy-three million, eighty-one thousand, one hundred eighty-seven".