23221352155 has 8 divisors (see below), whose sum is σ = 27867258432. Its totient is φ = 18575991168.

The previous prime is 23221352123. The next prime is 23221352173. The reversal of 23221352155 is 55125312232.

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 23221352155 - 2⁵ = 23221352123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35907 + ... + 218476.

It is an arithmetic number, because the mean of its divisors is an integer number (3483407304).

Almost surely, 2^23221352155 is an apocalyptic number.

23221352155 is a deficient number, since it is larger than the sum of its proper divisors (4645906277).

23221352155 is a wasteful number, since it uses less digits than its factorization.

23221352155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272645.

The product of its digits is 18000, while the sum is 31.

Adding to 23221352155 its reverse (55125312232), we get a palindrome (78346664387).

The spelling of 23221352155 in words is "twenty-three billion, two hundred twenty-one million, three hundred fifty-two thousand, one hundred fifty-five".