222221513 has 8 divisors (see below), whose sum is σ = 227778240. Its totient is φ = 216730800.

The previous prime is 222221497. The next prime is 222221537. The reversal of 222221513 is 315122222.

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 222221513 - 2⁴ = 222221497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221543) 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, 9653 + ... + 23186.

It is an arithmetic number, because the mean of its divisors is an integer number (28472280).

Almost surely, 2^222221513 is an apocalyptic number.

It is an amenable number.

222221513 is a deficient number, since it is larger than the sum of its proper divisors (5556727).

222221513 is a wasteful number, since it uses less digits than its factorization.

222221513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33007.

The product of its digits is 480, while the sum is 20.

The square root of 222221513 is about 14907.0960619431. The cubic root of 222221513 is about 605.7062199055.

Adding to 222221513 its reverse (315122222), we get a palindrome (537343735).

The spelling of 222221513 in words is "two hundred twenty-two million, two hundred twenty-one thousand, five hundred thirteen".