23110000221 has 64 divisors (see below), whose sum is σ = 39356098560. Its totient is φ = 11714626560.

The previous prime is 23110000217. The next prime is 23110000223. The reversal of 23110000221 is 12200001132.

It is not a de Polignac number, because 23110000221 - 2² = 23110000217 is a prime.

It is a super-2 number, since 2×23110000221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23110000197 and 23110000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110000223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1860985 + ... + 1873361.

It is an arithmetic number, because the mean of its divisors is an integer number (614939040).

Almost surely, 2^23110000221 is an apocalyptic number.

23110000221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23110000221 is a deficient number, since it is larger than the sum of its proper divisors (16246098339).

23110000221 is a wasteful number, since it uses less digits than its factorization.

23110000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23110000221 its reverse (12200001132), we get a palindrome (35310001353).

The spelling of 23110000221 in words is "twenty-three billion, one hundred ten million, two hundred twenty-one", and thus it is an aban number.