221013013331 has 8 divisors (see below), whose sum is σ = 241130569728. Its totient is φ = 200899701000.

The previous prime is 221013013303. The next prime is 221013013349. The reversal of 221013013331 is 133310310122.

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 221013013331 - 2³⁰ = 219939271507 is a prime.

It is a super-2 number, since 2×221013013331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221013013301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951635 + ... + 1160876.

It is an arithmetic number, because the mean of its divisors is an integer number (30141321216).

Almost surely, 2^221013013331 is an apocalyptic number.

221013013331 is a deficient number, since it is larger than the sum of its proper divisors (20117556397).

221013013331 is a wasteful number, since it uses less digits than its factorization.

221013013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122033.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 221013013331 its reverse (133310310122), we get a palindrome (354323323453).

The spelling of 221013013331 in words is "two hundred twenty-one billion, thirteen million, thirteen thousand, three hundred thirty-one".