221233223015 has 48 divisors (see below), whose sum is σ = 314843645952. Its totient is φ = 148749060096.

The previous prime is 221233222907. The next prime is 221233223047. The reversal of 221233223015 is 510322332122.

It is not a de Polignac number, because 221233223015 - 2⁸ = 221233222759 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 26186522 + ... + 26194968.

It is an arithmetic number, because the mean of its divisors is an integer number (6559242624).

Almost surely, 2^221233223015 is an apocalyptic number.

221233223015 is a deficient number, since it is larger than the sum of its proper divisors (93610422937).

221233223015 is a wasteful number, since it uses less digits than its factorization.

221233223015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536 (or 10529 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 221233223015 its reverse (510322332122), we get a palindrome (731555555137).

The spelling of 221233223015 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, fifteen".