2201031 has 48 divisors (see below), whose sum is σ = 3993600. Its totient is φ = 1164240.

The previous prime is 2200997. The next prime is 2201033. The reversal of 2201031 is 1301022.

It is a happy number.

2201031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2201031 - 2⁶ = 2200967 is a prime.

It is a super-2 number, since 2×2201031² = 9689074925922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

2201031 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70986 + ... + 71016.

It is an arithmetic number, because the mean of its divisors is an integer number (83200).

2^2201031 is an apocalyptic number.

2201031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2201031 is a deficient number, since it is larger than the sum of its proper divisors (1792569).

2201031 is a wasteful number, since it uses less digits than its factorization.

2201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2201031 is about 1483.5872067391. The cubic root of 2201031 is about 130.0794583271.

Adding to 2201031 its reverse (1301022), we get a palindrome (3502053).

Subtracting from 2201031 its reverse (1301022), we obtain a palindrome (900009).

The spelling of 2201031 in words is "two million, two hundred one thousand, thirty-one".