22331505149 has 4 divisors (see below), whose sum is σ = 22664811264. Its totient is φ = 21998199036.

The previous prime is 22331505103. The next prime is 22331505169. The reversal of 22331505149 is 94150513322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22331505149 is a prime.

It is a super-2 number, since 2×22331505149² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331505169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166652957 + ... + 166653090.

It is an arithmetic number, because the mean of its divisors is an integer number (5666202816).

Almost surely, 2^22331505149 is an apocalyptic number.

It is an amenable number.

22331505149 is a deficient number, since it is larger than the sum of its proper divisors (333306115).

22331505149 is an equidigital number, since it uses as much as digits as its factorization.

22331505149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333306114.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 22331505149 in words is "twenty-two billion, three hundred thirty-one million, five hundred five thousand, one hundred forty-nine".