1200121023299 has 16 divisors (see below), whose sum is σ = 1319676334080. Its totient is φ = 1082309830560.

The previous prime is 1200121023281. The next prime is 1200121023341. The reversal of 1200121023299 is 9923201210021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1200121023299 - 2¹² = 1200121019203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200121023209) 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, 14267537 + ... + 14351405.

It is an arithmetic number, because the mean of its divisors is an integer number (82479770880).

Almost surely, 2^{1200121023299} is an apocalyptic number.

1200121023299 is a deficient number, since it is larger than the sum of its proper divisors (119555310781).

1200121023299 is a wasteful number, since it uses less digits than its factorization.

1200121023299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94250.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 1200121023299 in words is "one trillion, two hundred billion, one hundred twenty-one million, twenty-three thousand, two hundred ninety-nine".