2231123333121 has 32 divisors (see below), whose sum is σ = 3419595379200. Its totient is φ = 1436020669440.

The previous prime is 2231123333071. The next prime is 2231123333123. The reversal of 2231123333121 is 1213333211322.

2231123333121 is a `hidden beast` number, since 2 + 2 + 3 + 1 + 12 + 333 + 312 + 1 = 666.

It is not a de Polignac number, because 2231123333121 - 2¹⁵ = 2231123300353 is a prime.

It is a super-3 number, since 3×2231123333121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2231123333123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11466081 + ... + 11659041.

It is an arithmetic number, because the mean of its divisors is an integer number (106862355600).

Almost surely, 2^{2231123333121} is an apocalyptic number.

It is an amenable number.

2231123333121 is a deficient number, since it is larger than the sum of its proper divisors (1188472046079).

2231123333121 is a wasteful number, since it uses less digits than its factorization.

2231123333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207766 (or 207760 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 2231123333121 its reverse (1213333211322), we get a palindrome (3444456544443).

The spelling of 2231123333121 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-three million, three hundred thirty-three thousand, one hundred twenty-one".