1012021001199 has 48 divisors (see below), whose sum is σ = 1657444545120. Its totient is φ = 589885182720.

The previous prime is 1012021001191. The next prime is 1012021001279. The reversal of 1012021001199 is 9911001202101.

It is not a de Polignac number, because 1012021001199 - 2³ = 1012021001191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012021001191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11651937 + ... + 11738469.

It is an arithmetic number, because the mean of its divisors is an integer number (34530094690).

Almost surely, 2^{1012021001199} is an apocalyptic number.

1012021001199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1012021001199 is a deficient number, since it is larger than the sum of its proper divisors (645423543921).

1012021001199 is a wasteful number, since it uses less digits than its factorization.

1012021001199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91832 (or 91829 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 1012021001199 in words is "one trillion, twelve billion, twenty-one million, one thousand, one hundred ninety-nine".