1200161695212 has 60 divisors (see below), whose sum is σ = 3143032970616. Its totient is φ = 399343262400.

The previous prime is 1200161695151. The next prime is 1200161695231. The reversal of 1200161695212 is 2125961610021.

1200161695212 is a `hidden beast` number, since 1 + 20 + 0 + 1 + 616 + 9 + 5 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3107289 + ... + 3472112.

Almost surely, 2^{1200161695212} is an apocalyptic number.

1200161695212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200161695212 is an abundant number, since it is smaller than the sum of its proper divisors (1942871275404).

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

1200161695212 is a wasteful number, since it uses less digits than its factorization.

1200161695212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579980 (or 6579969 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 1200161695212 in words is "one trillion, two hundred billion, one hundred sixty-one million, six hundred ninety-five thousand, two hundred twelve".