1201002109999 has 4 divisors (see below), whose sum is σ = 1201334524936. Its totient is φ = 1200669695064.

The previous prime is 1201002109903. The next prime is 1201002110003. The reversal of 1201002109999 is 9999012001021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201002109999 - 2¹¹ = 1201002107951 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 (1201002109799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166202049 + ... + 166209274.

It is an arithmetic number, because the mean of its divisors is an integer number (300333631234).

Almost surely, 2^{1201002109999} is an apocalyptic number.

1201002109999 is a deficient number, since it is larger than the sum of its proper divisors (332414937).

1201002109999 is an equidigital number, since it uses as much as digits as its factorization.

1201002109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332414936.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 1201002109999 in words is "one trillion, two hundred one billion, two million, one hundred nine thousand, nine hundred ninety-nine".