2232121231 has 2 divisors, whose sum is σ = 2232121232. Its totient is φ = 2232121230.

The previous prime is 2232121207. The next prime is 2232121247. The reversal of 2232121231 is 1321212322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2232121231 - 2³¹ = 84637583 is a prime.

It is a super-3 number, since 3×2232121231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2232121199 and 2232121208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2232121201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116060615 + 1116060616.

It is an arithmetic number, because the mean of its divisors is an integer number (1116060616).

Almost surely, 2^2232121231 is an apocalyptic number.

2232121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2232121231 is an equidigital number, since it uses as much as digits as its factorization.

2232121231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 2232121231 is about 47245.3302560158. The cubic root of 2232121231 is about 1306.8906758008.

Adding to 2232121231 its reverse (1321212322), we get a palindrome (3553333553).

The spelling of 2232121231 in words is "two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty-one".