1201101120999 has 24 divisors (see below), whose sum is σ = 1868446808592. Its totient is φ = 739112532480.

The previous prime is 1201101120943. The next prime is 1201101121019. The reversal of 1201101120999 is 9990211011021.

It is not a de Polignac number, because 1201101120999 - 2⁷ = 1201101120871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201101120799) 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 23 ways as a sum of consecutive naturals, for example, 3368464 + ... + 3707930.

It is an arithmetic number, because the mean of its divisors is an integer number (77851950358).

Almost surely, 2^{1201101120999} is an apocalyptic number.

1201101120999 is a deficient number, since it is larger than the sum of its proper divisors (667345687593).

1201101120999 is a wasteful number, since it uses less digits than its factorization.

1201101120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369727 (or 369724 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 1201101120999 in words is "one trillion, two hundred one billion, one hundred one million, one hundred twenty thousand, nine hundred ninety-nine".