12111002122 has 8 divisors (see below), whose sum is σ = 18509267556. Its totient is φ = 5941246272.

The previous prime is 12111002077. The next prime is 12111002131. The reversal of 12111002122 is 22120011121.

It can be written as a sum of positive squares in 2 ways, for example, as 9258480841 + 2852521281 = 96221^2 + 53409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57127263 + ... + 57127474.

Almost surely, 2^12111002122 is an apocalyptic number.

12111002122 is a deficient number, since it is larger than the sum of its proper divisors (6398265434).

12111002122 is a wasteful number, since it uses less digits than its factorization.

12111002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114254792.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12111002122 its reverse (22120011121), we get a palindrome (34231013243).

The spelling of 12111002122 in words is "twelve billion, one hundred eleven million, two thousand, one hundred twenty-two".