12001212122 has 8 divisors (see below), whose sum is σ = 18002865972. Its totient is φ = 6000256800.

The previous prime is 12001212089. The next prime is 12001212137. The reversal of 12001212122 is 22121210021.

It can be written as a sum of positive squares in 2 ways, for example, as 11627524561 + 373687561 = 107831^2 + 19331^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12001212097 and 12001212106.

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, 129329 + ... + 201812.

Almost surely, 2^12001212122 is an apocalyptic number.

12001212122 is a deficient number, since it is larger than the sum of its proper divisors (6001653850).

12001212122 is a wasteful number, since it uses less digits than its factorization.

12001212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349264.

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

Adding to 12001212122 its reverse (22121210021), we get a palindrome (34122422143).

The spelling of 12001212122 in words is "twelve billion, one million, two hundred twelve thousand, one hundred twenty-two".