2231332201121 has 4 divisors (see below), whose sum is σ = 2328346644672. Its totient is φ = 2134317757572.

The previous prime is 2231332201099. The next prime is 2231332201127. The reversal of 2231332201121 is 1211022331322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231332201121 - 2²⁶ = 2231265092257 is a prime.

It is a super-3 number, since 3×2231332201121³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 97014443527 = 2231332201121 / (2 + 2 + 3 + 1 + 3 + 3 + 2 + 2 + 0 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231332201127) 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 in 3 ways as a sum of consecutive naturals, for example, 48507221741 + ... + 48507221786.

It is an arithmetic number, because the mean of its divisors is an integer number (582086661168).

Almost surely, 2^{2231332201121} is an apocalyptic number.

It is an amenable number.

2231332201121 is a deficient number, since it is larger than the sum of its proper divisors (97014443551).

2231332201121 is an equidigital number, since it uses as much as digits as its factorization.

2231332201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97014443550.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2231332201121 its reverse (1211022331322), we get a palindrome (3442354532443).

The spelling of 2231332201121 in words is "two trillion, two hundred thirty-one billion, three hundred thirty-two million, two hundred one thousand, one hundred twenty-one".