12013321122 has 24 divisors (see below), whose sum is σ = 28395123120. Its totient is φ = 3640400280.

The previous prime is 12013321109. The next prime is 12013321141. The reversal of 12013321122 is 22112331021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12013321095 and 12013321104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30336472 + ... + 30336867.

It is an arithmetic number, because the mean of its divisors is an integer number (1183130130).

Almost surely, 2^12013321122 is an apocalyptic number.

12013321122 is an abundant number, since it is smaller than the sum of its proper divisors (16381801998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12013321122 is a wasteful number, since it uses less digits than its factorization.

12013321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60673358 (or 60673355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12013321122 its reverse (22112331021), we get a palindrome (34125652143).

The spelling of 12013321122 in words is "twelve billion, thirteen million, three hundred twenty-one thousand, one hundred twenty-two".