12002112122 has 64 divisors (see below), whose sum is σ = 24761818368. Its totient is φ = 4211136000.

The previous prime is 12002112107. The next prime is 12002112137. The reversal of 12002112122 is 22121120021.

It is an interprime number because it is at equal distance from previous prime (12002112107) and next prime (12002112137).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12002112097 and 12002112106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8972 + ... + 155192.

It is an arithmetic number, because the mean of its divisors is an integer number (386903412).

Almost surely, 2^12002112122 is an apocalyptic number.

12002112122 is an abundant number, since it is smaller than the sum of its proper divisors (12759706246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002112122 is a wasteful number, since it uses less digits than its factorization.

12002112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146295.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002112122 its reverse (22121120021), we get a palindrome (34123232143).

The spelling of 12002112122 in words is "twelve billion, two million, one hundred twelve thousand, one hundred twenty-two".