2231000012122 has 128 divisors (see below), whose sum is σ = 4007762841600. Its totient is φ = 911687616000.

The previous prime is 2231000012117. The next prime is 2231000012123. The reversal of 2231000012122 is 2212100001322.

It is a happy number.

It is a super-3 number, since 3×2231000012122³ (a number of 38 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 = 2231000012096 and 2231000012105.

It is not an unprimeable number, because it can be changed into a prime (2231000012123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3228653797 + ... + 3228654487.

It is an arithmetic number, because the mean of its divisors is an integer number (31310647200).

Almost surely, 2^{2231000012122} is an apocalyptic number.

2231000012122 is a deficient number, since it is larger than the sum of its proper divisors (1776762829478).

2231000012122 is a wasteful number, since it uses less digits than its factorization.

2231000012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2231000012122 its reverse (2212100001322), we get a palindrome (4443100013444).

The spelling of 2231000012122 in words is "two trillion, two hundred thirty-one billion, twelve thousand, one hundred twenty-two".