23145222211 has 8 divisors (see below), whose sum is σ = 23182389248. Its totient is φ = 23108085000.

The previous prime is 23145222187. The next prime is 23145222223. The reversal of 23145222211 is 11222254132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23145222211 - 2⁵ = 23145222179 is a prime.

It is a super-2 number, since 2×23145222211² (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 (23145222311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927456 + ... + 1939426.

It is an arithmetic number, because the mean of its divisors is an integer number (2897798656).

Almost surely, 2^23145222211 is an apocalyptic number.

23145222211 is a deficient number, since it is larger than the sum of its proper divisors (37167037).

23145222211 is a wasteful number, since it uses less digits than its factorization.

23145222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14913.

The product of its digits is 1920, while the sum is 25.

Adding to 23145222211 its reverse (11222254132), we get a palindrome (34367476343).

The spelling of 23145222211 in words is "twenty-three billion, one hundred forty-five million, two hundred twenty-two thousand, two hundred eleven".