1200122212012 has 96 divisors (see below), whose sum is σ = 2396389121280. Its totient is φ = 522343987200.

The previous prime is 1200122211943. The next prime is 1200122212021. The reversal of 1200122212012 is 2102122210021.

It is a happy number.

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, 158386368 + ... + 158393944.

It is an arithmetic number, because the mean of its divisors is an integer number (24962386680).

Almost surely, 2^{1200122212012} is an apocalyptic number.

It is an amenable number.

1200122212012 is a deficient number, since it is larger than the sum of its proper divisors (1196266909268).

1200122212012 is a wasteful number, since it uses less digits than its factorization.

1200122212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10511 (or 10509 counting only the distinct ones).

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

Adding to 1200122212012 its reverse (2102122210021), we get a palindrome (3302244422033).

The spelling of 1200122212012 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twelve thousand, twelve".