22271398155 has 12 divisors (see below), whose sum is σ = 38603756880. Its totient is φ = 11878078992.

The previous prime is 22271398141. The next prime is 22271398159. The reversal of 22271398155 is 55189317222.

It is not a de Polignac number, because 22271398155 - 2¹¹ = 22271396107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 494919959 = 22271398155 / (2 + 2 + 2 + 7 + 1 + 3 + 9 + 8 + 1 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22271398155.

It is not an unprimeable number, because it can be changed into a prime (22271398159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247459935 + ... + 247460024.

It is an arithmetic number, because the mean of its divisors is an integer number (3216979740).

Almost surely, 2^22271398155 is an apocalyptic number.

22271398155 is a deficient number, since it is larger than the sum of its proper divisors (16332358725).

22271398155 is a wasteful number, since it uses less digits than its factorization.

22271398155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494919970 (or 494919967 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 22271398155 in words is "twenty-two billion, two hundred seventy-one million, three hundred ninety-eight thousand, one hundred fifty-five".