1200012020199 has 16 divisors (see below), whose sum is σ = 1777900664800. Its totient is φ = 799960727808.

The previous prime is 1200012020191. The next prime is 1200012020209. The reversal of 1200012020199 is 9910202100021.

It is not a de Polignac number, because 1200012020199 - 2³ = 1200012020191 is a prime.

It is a super-3 number, since 3×1200012020199³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012020191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845194 + ... + 1764759.

It is an arithmetic number, because the mean of its divisors is an integer number (111118791550).

Almost surely, 2^{1200012020199} is an apocalyptic number.

1200012020199 is a deficient number, since it is larger than the sum of its proper divisors (577888644601).

1200012020199 is a wasteful number, since it uses less digits than its factorization.

1200012020199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626991 (or 2626985 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 1200012020199 in words is "one trillion, two hundred billion, twelve million, twenty thousand, one hundred ninety-nine".