2221013231 has 8 divisors (see below), whose sum is σ = 2243687040. Its totient is φ = 2198375128.

The previous prime is 2221013213. The next prime is 2221013237. The reversal of 2221013231 is 1323101222.

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 2221013231 - 2¹⁴ = 2220996847 is a prime.

It is a super-2 number, since 2×2221013231² = 9865799544554118722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221013237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126470 + ... + 142956.

It is an arithmetic number, because the mean of its divisors is an integer number (280460880).

Almost surely, 2^2221013231 is an apocalyptic number.

2221013231 is a deficient number, since it is larger than the sum of its proper divisors (22673809).

2221013231 is a wasteful number, since it uses less digits than its factorization.

2221013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17853.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2221013231 is about 47127.6270461393. The cubic root of 2221013231 is about 1304.7191854294.

Adding to 2221013231 its reverse (1323101222), we get a palindrome (3544114453).

The spelling of 2221013231 in words is "two billion, two hundred twenty-one million, thirteen thousand, two hundred thirty-one".