1200222212012 has 24 divisors (see below), whose sum is σ = 2200320091200. Its totient is φ = 572083214976.

The previous prime is 1200222211973. The next prime is 1200222212069. The reversal of 1200222212012 is 2102122220021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65476553 + ... + 65494880.

It is an arithmetic number, because the mean of its divisors is an integer number (91680003800).

Almost surely, 2^{1200222212012} is an apocalyptic number.

It is an amenable number.

1200222212012 is a deficient number, since it is larger than the sum of its proper divisors (1000097879188).

1200222212012 is a wasteful number, since it uses less digits than its factorization.

1200222212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130971545 (or 130971543 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1200222212012 its reverse (2102122220021), we get a palindrome (3302344432033).

The spelling of 1200222212012 in words is "one trillion, two hundred billion, two hundred twenty-two million, two hundred twelve thousand, twelve".