1200100020019 has 8 divisors (see below), whose sum is σ = 1245964674960. Its totient is φ = 1154534158176.

The previous prime is 1200100020011. The next prime is 1200100020037. The reversal of 1200100020019 is 9100200010021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200100020019 - 2³ = 1200100020011 is a prime.

It is a super-2 number, since 2×1200100020019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200100019984 and 1200100020011.

It is not an unprimeable number, because it can be changed into a prime (1200100020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74690089 + ... + 74706154.

It is an arithmetic number, because the mean of its divisors is an integer number (155745584370).

Almost surely, 2^{1200100020019} is an apocalyptic number.

1200100020019 is a deficient number, since it is larger than the sum of its proper divisors (45864654941).

1200100020019 is a wasteful number, since it uses less digits than its factorization.

1200100020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149396549.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 1200100020019 in words is "one trillion, two hundred billion, one hundred million, twenty thousand, nineteen".