2231222133121 has 16 divisors (see below), whose sum is σ = 2301366173184. Its totient is φ = 2162032835904.

The previous prime is 2231222133109. The next prime is 2231222133157. The reversal of 2231222133121 is 1213312221322.

2231222133121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2231222133121 - 2⁹ = 2231222132609 is a prime.

It is a super-3 number, since 3×2231222133121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231222131121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21116995 + ... + 21222391.

It is an arithmetic number, because the mean of its divisors is an integer number (143835385824).

Almost surely, 2^{2231222133121} is an apocalyptic number.

It is an amenable number.

2231222133121 is a deficient number, since it is larger than the sum of its proper divisors (70144040063).

2231222133121 is a wasteful number, since it uses less digits than its factorization.

2231222133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109920.

The product of its digits is 1728, while the sum is 25.

Adding to 2231222133121 its reverse (1213312221322), we get a palindrome (3444534354443).

The spelling of 2231222133121 in words is "two trillion, two hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-three thousand, one hundred twenty-one".