22145510205 has 48 divisors (see below), whose sum is σ = 47243763840. Its totient is φ = 9344916864.

The previous prime is 22145510197. The next prime is 22145510209. The reversal of 22145510205 is 50201554122.

22145510205 is a `hidden beast` number, since 2 + 2 + 1 + 455 + 1 + 0 + 205 = 666.

It is not a de Polignac number, because 22145510205 - 2³ = 22145510197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145510209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2699875 + ... + 2708064.

It is an arithmetic number, because the mean of its divisors is an integer number (984245080).

Almost surely, 2^22145510205 is an apocalyptic number.

It is an amenable number.

22145510205 is an abundant number, since it is smaller than the sum of its proper divisors (25098253635).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22145510205 is a wasteful number, since it uses less digits than its factorization.

22145510205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407970 (or 5407967 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 22145510205 in words is "twenty-two billion, one hundred forty-five million, five hundred ten thousand, two hundred five".