1200000122212 has 12 divisors (see below), whose sum is σ = 2129577682176. Its totient is φ = 591549355880.

The previous prime is 1200000122159. The next prime is 1200000122213. The reversal of 1200000122212 is 2122210000021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200000122192 and 1200000122201.

It is not an unprimeable number, because it can be changed into a prime (1200000122213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2112675988 + ... + 2112676555.

It is an arithmetic number, because the mean of its divisors is an integer number (177464806848).

Almost surely, 2^{1200000122212} is an apocalyptic number.

It is an amenable number.

1200000122212 is a deficient number, since it is larger than the sum of its proper divisors (929577559964).

1200000122212 is a wasteful number, since it uses less digits than its factorization.

1200000122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225352618 (or 4225352616 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200000122212 its reverse (2122210000021), we get a palindrome (3322210122233).

The spelling of 1200000122212 in words is "one trillion, two hundred billion, one hundred twenty-two thousand, two hundred twelve".