12001210122 has 64 divisors (see below), whose sum is σ = 28234967040. Its totient is φ = 3361276800.

The previous prime is 12001210049. The next prime is 12001210183. The reversal of 12001210122 is 22101210021.

It is a junction number, because it is equal to n+sod(n) for n = 12001210098 and 12001210107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65298 + ... + 168125.

It is an arithmetic number, because the mean of its divisors is an integer number (441171360).

Almost surely, 2^12001210122 is an apocalyptic number.

12001210122 is an abundant number, since it is smaller than the sum of its proper divisors (16233756918).

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

12001210122 is a wasteful number, since it uses less digits than its factorization.

12001210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233499.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001210122 its reverse (22101210021), we get a palindrome (34102420143).

The spelling of 12001210122 in words is "twelve billion, one million, two hundred ten thousand, one hundred twenty-two".