2231404625121 has 32 divisors (see below), whose sum is σ = 3435527639040. Its totient is φ = 1261855673856.

The previous prime is 2231404625113. The next prime is 2231404625143. The reversal of 2231404625121 is 1215264041322.

It is not a de Polignac number, because 2231404625121 - 2³ = 2231404625113 is a prime.

It is a super-3 number, since 3×2231404625121³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231404625171) 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, 39446760 + ... + 39503286.

It is an arithmetic number, because the mean of its divisors is an integer number (107360238720).

Almost surely, 2^{2231404625121} is an apocalyptic number.

2231404625121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2231404625121 is a deficient number, since it is larger than the sum of its proper divisors (1204123013919).

2231404625121 is a wasteful number, since it uses less digits than its factorization.

2231404625121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76013.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 2231404625121 its reverse (1215264041322), we get a palindrome (3446668666443).

The spelling of 2231404625121 in words is "two trillion, two hundred thirty-one billion, four hundred four million, six hundred twenty-five thousand, one hundred twenty-one".