1200111210997 has 8 divisors (see below), whose sum is σ = 1226585016000. Its totient is φ = 1173841837344.

The previous prime is 1200111210941. The next prime is 1200111211007. The reversal of 1200111210997 is 7990121110021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200111210997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111210097) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51095968 + ... + 51119449.

It is an arithmetic number, because the mean of its divisors is an integer number (153323127000).

Almost surely, 2^{1200111210997} is an apocalyptic number.

It is an amenable number.

1200111210997 is a deficient number, since it is larger than the sum of its proper divisors (26473805003).

1200111210997 is a wasteful number, since it uses less digits than its factorization.

1200111210997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102215675.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 1200111210997 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred ten thousand, nine hundred ninety-seven".