12013022122 has 4 divisors (see below), whose sum is σ = 18019533186. Its totient is φ = 6006511060.

The previous prime is 12013022117. The next prime is 12013022123. The reversal of 12013022122 is 22122031021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9670558921 + 2342463201 = 98339^2 + 48399^2 .

It is a super-2 number, since 2×12013022122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12013022096 and 12013022105.

It is not an unprimeable number, because it can be changed into a prime (12013022123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003255529 + ... + 3003255532.

Almost surely, 2^12013022122 is an apocalyptic number.

12013022122 is a deficient number, since it is larger than the sum of its proper divisors (6006511064).

12013022122 is an equidigital number, since it uses as much as digits as its factorization.

12013022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006511063.

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

Adding to 12013022122 its reverse (22122031021), we get a palindrome (34135053143).

The spelling of 12013022122 in words is "twelve billion, thirteen million, twenty-two thousand, one hundred twenty-two".