23221457551015 has 8 divisors (see below), whose sum is σ = 27866114144928. Its totient is φ = 18576922651680.

The previous prime is 23221457551007. The next prime is 23221457551027. The reversal of 23221457551015 is 51015575412232.

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

It is not a de Polignac number, because 23221457551015 - 2³ = 23221457551007 is a prime.

It is a super-2 number, since 2×23221457551015² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30003316 + ... + 30767545.

It is an arithmetic number, because the mean of its divisors is an integer number (3483264268116).

Almost surely, 2^{23221457551015} is an apocalyptic number.

23221457551015 is a deficient number, since it is larger than the sum of its proper divisors (4644656593913).

23221457551015 is an equidigital number, since it uses as much as digits as its factorization.

23221457551015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60847289.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 23221457551015 in words is "twenty-three trillion, two hundred twenty-one billion, four hundred fifty-seven million, five hundred fifty-one thousand, fifteen".