23221241515 has 8 divisors (see below), whose sum is σ = 27902111328. Its totient is φ = 18552578880.

The previous prime is 23221241513. The next prime is 23221241557. The reversal of 23221241515 is 51514212232.

It is a happy number.

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

It is not a de Polignac number, because 23221241515 - 2¹ = 23221241513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221241513) 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, 3047607 + ... + 3055216.

It is an arithmetic number, because the mean of its divisors is an integer number (3487763916).

Almost surely, 2^23221241515 is an apocalyptic number.

23221241515 is a deficient number, since it is larger than the sum of its proper divisors (4680869813).

23221241515 is an equidigital number, since it uses as much as digits as its factorization.

23221241515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103589.

The product of its digits is 4800, while the sum is 28.

Adding to 23221241515 its reverse (51514212232), we get a palindrome (74735453747).

The spelling of 23221241515 in words is "twenty-three billion, two hundred twenty-one million, two hundred forty-one thousand, five hundred fifteen".