2220031 has 4 divisors (see below), whose sum is σ = 2421864. Its totient is φ = 2018200.

The previous prime is 2220007. The next prime is 2220041. The reversal of 2220031 is 1300222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220031 - 2⁵ = 2219999 is a prime.

It is a super-2 number, since 2×2220031² = 9857075281922, 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 (2220041) 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 3 ways as a sum of consecutive naturals, for example, 100900 + ... + 100921.

It is an arithmetic number, because the mean of its divisors is an integer number (605466).

2^2220031 is an apocalyptic number.

2220031 is a deficient number, since it is larger than the sum of its proper divisors (201833).

2220031 is a wasteful number, since it uses less digits than its factorization.

2220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201832.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2220031 is about 1489.9768454577. The cubic root of 2220031 is about 130.4526822086.

Adding to 2220031 its reverse (1300222), we get a palindrome (3520253).

The spelling of 2220031 in words is "two million, two hundred twenty thousand, thirty-one".