2102231 has 4 divisors (see below), whose sum is σ = 2118912. Its totient is φ = 2085552.

The previous prime is 2102213. The next prime is 2102249. The reversal of 2102231 is 1322012.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2102213) and next prime (2102249).

It is a cyclic number.

It is not a de Polignac number, because 2102231 - 2⁶ = 2102167 is a prime.

It is a super-2 number, since 2×2102231² = 8838750354722, 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 (2102201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8150 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (529728).

2^2102231 is an apocalyptic number.

2102231 is a deficient number, since it is larger than the sum of its proper divisors (16681).

2102231 is a wasteful number, since it uses less digits than its factorization.

2102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16680.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2102231 is about 1449.9072384122. The cubic root of 2102231 is about 128.1032492128.

Adding to 2102231 its reverse (1322012), we get a palindrome (3424243).

The spelling of 2102231 in words is "two million, one hundred two thousand, two hundred thirty-one".