22018140187 has 2 divisors, whose sum is σ = 22018140188. Its totient is φ = 22018140186.

The previous prime is 22018140161. The next prime is 22018140229. The reversal of 22018140187 is 78104181022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22018140187 - 2⁷ = 22018140059 is a prime.

It is not a weakly prime, because it can be changed into another prime (22018140127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11009070093 + 11009070094.

It is an arithmetic number, because the mean of its divisors is an integer number (11009070094).

Almost surely, 2^22018140187 is an apocalyptic number.

22018140187 is a deficient number, since it is larger than the sum of its proper divisors (1).

22018140187 is an equidigital number, since it uses as much as digits as its factorization.

22018140187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 34.

The spelling of 22018140187 in words is "twenty-two billion, eighteen million, one hundred forty thousand, one hundred eighty-seven".