23152022211 has 4 divisors (see below), whose sum is σ = 30869362952. Its totient is φ = 15434681472.

The previous prime is 23152022207. The next prime is 23152022221. The reversal of 23152022211 is 11222025132.

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

It is not a de Polignac number, because 23152022211 - 2² = 23152022207 is a prime.

It is a super-2 number, since 2×23152022211² (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 (23152022221) 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, 3858670366 + ... + 3858670371.

It is an arithmetic number, because the mean of its divisors is an integer number (7717340738).

Almost surely, 2^23152022211 is an apocalyptic number.

23152022211 is a deficient number, since it is larger than the sum of its proper divisors (7717340741).

23152022211 is an equidigital number, since it uses as much as digits as its factorization.

23152022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717340740.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 23152022211 its reverse (11222025132), we get a palindrome (34374047343).

The spelling of 23152022211 in words is "twenty-three billion, one hundred fifty-two million, twenty-two thousand, two hundred eleven".