12122012122 has 64 divisors (see below), whose sum is σ = 21816086400. Its totient is φ = 4989600000.

The previous prime is 12122012107. The next prime is 12122012143. The reversal of 12122012122 is 22121022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12122012096 and 12122012105.

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, 1219372 + ... + 1229272.

It is an arithmetic number, because the mean of its divisors is an integer number (340876350).

Almost surely, 2^12122012122 is an apocalyptic number.

12122012122 is a deficient number, since it is larger than the sum of its proper divisors (9694074278).

12122012122 is a wasteful number, since it uses less digits than its factorization.

12122012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122012122 its reverse (22121022121), we get a palindrome (34243034243).

Subtracting 12122012122 from its reverse (22121022121), we obtain a palindrome (9999009999).

The spelling of 12122012122 in words is "twelve billion, one hundred twenty-two million, twelve thousand, one hundred twenty-two".