2220231 has 8 divisors (see below), whose sum is σ = 3188080. Its totient is φ = 1366272.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220231 is 1320222.

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

It is not a de Polignac number, because 2220231 - 2⁵ = 2220199 is a prime.

It is a super-3 number, since 3×2220231³ = 32833391209789759173, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220271) 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, 28426 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (398510).

2^2220231 is an apocalyptic number.

2220231 is a deficient number, since it is larger than the sum of its proper divisors (967849).

2220231 is a wasteful number, since it uses less digits than its factorization.

2220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56945.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2220231 is about 1490.0439590831. The cubic root of 2220231 is about 130.4565995342.

Adding to 2220231 its reverse (1320222), we get a palindrome (3540453).

Subtracting from 2220231 its reverse (1320222), we obtain a palindrome (900009).

The spelling of 2220231 in words is "two million, two hundred twenty thousand, two hundred thirty-one".