22531505011 has 4 divisors (see below), whose sum is σ = 22848850224. Its totient is φ = 22214159800.

The previous prime is 22531504979. The next prime is 22531505071. The reversal of 22531505011 is 11050513522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22531505011 - 2⁵ = 22531504979 is a prime.

It is a super-2 number, since 2×22531505011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22531505071) 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, 158672500 + ... + 158672641.

It is an arithmetic number, because the mean of its divisors is an integer number (5712212556).

Almost surely, 2^22531505011 is an apocalyptic number.

22531505011 is a deficient number, since it is larger than the sum of its proper divisors (317345213).

22531505011 is an equidigital number, since it uses as much as digits as its factorization.

22531505011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317345212.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 22531505011 in words is "twenty-two billion, five hundred thirty-one million, five hundred five thousand, eleven".