12042648122 has 16 divisors (see below), whose sum is σ = 19132825320. Its totient is φ = 5665271808.

The previous prime is 12042648113. The next prime is 12042648143. The reversal of 12042648122 is 22184624021.

It is a Cunningham number, because it is equal to 109739²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 12027289561 + 15358561 = 109669^2 + 3919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50204 + ... + 163112.

Almost surely, 2^12042648122 is an apocalyptic number.

12042648122 is a deficient number, since it is larger than the sum of its proper divisors (7090177198).

12042648122 is a wasteful number, since it uses less digits than its factorization.

12042648122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116065.

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 12042648122 in words is "twelve billion, forty-two million, six hundred forty-eight thousand, one hundred twenty-two".