22108145261 has 16 divisors (see below), whose sum is σ = 24663585024. Its totient is φ = 19709716224.

The previous prime is 22108145249. The next prime is 22108145263. The reversal of 22108145261 is 16254180122.

It is not a de Polignac number, because 22108145261 - 2⁶ = 22108145197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22108145263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234206 + ... + 314751.

It is an arithmetic number, because the mean of its divisors is an integer number (1541474064).

Almost surely, 2^22108145261 is an apocalyptic number.

It is an amenable number.

22108145261 is a deficient number, since it is larger than the sum of its proper divisors (2555439763).

22108145261 is a wasteful number, since it uses less digits than its factorization.

22108145261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549100.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 22108145261 in words is "twenty-two billion, one hundred eight million, one hundred forty-five thousand, two hundred sixty-one".