2175212331 has 6 divisors (see below), whose sum is σ = 3141973380. Its totient is φ = 1450141548.

The previous prime is 2175212329. The next prime is 2175212341. The reversal of 2175212331 is 1332125712.

It is not a de Polignac number, because 2175212331 - 2¹ = 2175212329 is a prime.

It is a super-2 number, since 2×2175212331² = 9463097369868907122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2175212295 and 2175212304.

It is not an unprimeable number, because it can be changed into a prime (2175212341) 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, 120845121 + ... + 120845138.

It is an arithmetic number, because the mean of its divisors is an integer number (523662230).

Almost surely, 2^2175212331 is an apocalyptic number.

2175212331 is a deficient number, since it is larger than the sum of its proper divisors (966761049).

2175212331 is a wasteful number, since it uses less digits than its factorization.

2175212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241690265 (or 241690262 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 2175212331 is about 46639.1716371550. The cubic root of 2175212331 is about 1295.6883449140.

The spelling of 2175212331 in words is "two billion, one hundred seventy-five million, two hundred twelve thousand, three hundred thirty-one".