12013010122 has 4 divisors (see below), whose sum is σ = 18019515186. Its totient is φ = 6006505060.

The previous prime is 12013010099. The next prime is 12013010123. The reversal of 12013010122 is 22101031021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22101031021 = 19 ⋅1163212159.

It can be written as a sum of positive squares in only one way, i.e., 9745440961 + 2267569161 = 98719^2 + 47619^2 .

It is not an unprimeable number, because it can be changed into a prime (12013010123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003252529 + ... + 3003252532.

Almost surely, 2^12013010122 is an apocalyptic number.

12013010122 is a deficient number, since it is larger than the sum of its proper divisors (6006505064).

12013010122 is an equidigital number, since it uses as much as digits as its factorization.

12013010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006505063.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12013010122 its reverse (22101031021), we get a palindrome (34114041143).

The spelling of 12013010122 in words is "twelve billion, thirteen million, ten thousand, one hundred twenty-two".