2102122231 has 6 divisors (see below), whose sum is σ = 2310597296. Its totient is φ = 1911020100.

The previous prime is 2102122229. The next prime is 2102122249. The reversal of 2102122231 is 1322212012.

It is a happy number.

It is not a de Polignac number, because 2102122231 - 2¹ = 2102122229 is a prime.

It is a super-2 number, since 2×2102122231² = 8837835748128834722, 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 (2102122261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8686335 + ... + 8686576.

Almost surely, 2^2102122231 is an apocalyptic number.

2102122231 is a deficient number, since it is larger than the sum of its proper divisors (208475065).

2102122231 is a wasteful number, since it uses less digits than its factorization.

2102122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17372933 (or 17372922 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102122231 is about 45848.9065409416. The cubic root of 2102122231 is about 1281.0103982939.

Adding to 2102122231 its reverse (1322212012), we get a palindrome (3424334243).

The spelling of 2102122231 in words is "two billion, one hundred two million, one hundred twenty-two thousand, two hundred thirty-one".