2132212331 has 4 divisors (see below), whose sum is σ = 2133028464. Its totient is φ = 2131396200.

The previous prime is 2132212259. The next prime is 2132212349. The reversal of 2132212331 is 1332122312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132212331 is a prime.

It is a super-2 number, since 2×2132212331² = 9092658848936907122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132212931) 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, 404135 + ... + 409376.

It is an arithmetic number, because the mean of its divisors is an integer number (533257116).

Almost surely, 2^2132212331 is an apocalyptic number.

2132212331 is a deficient number, since it is larger than the sum of its proper divisors (816133).

2132212331 is an equidigital number, since it uses as much as digits as its factorization.

2132212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816132.

The product of its digits is 432, while the sum is 20.

The square root of 2132212331 is about 46175.8847343502. The cubic root of 2132212331 is about 1287.0936574985.

Adding to 2132212331 its reverse (1332122312), we get a palindrome (3464334643).

The spelling of 2132212331 in words is "two billion, one hundred thirty-two million, two hundred twelve thousand, three hundred thirty-one".