12011010122 has 4 divisors (see below), whose sum is σ = 18016515186. Its totient is φ = 6005505060.

The previous prime is 12011010107. The next prime is 12011010133. The reversal of 12011010122 is 22101011021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22101011021 = 109 ⋅202761569.

It can be written as a sum of positive squares in only one way, i.e., 7931505481 + 4079504641 = 89059^2 + 63871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002752529 + ... + 3002752532.

Almost surely, 2^12011010122 is an apocalyptic number.

12011010122 is a deficient number, since it is larger than the sum of its proper divisors (6005505064).

12011010122 is an equidigital number, since it uses as much as digits as its factorization.

12011010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005505063.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12011010122 its reverse (22101011021), we get a palindrome (34112021143).

The spelling of 12011010122 in words is "twelve billion, eleven million, ten thousand, one hundred twenty-two".