1012012021099 has 4 divisors (see below), whose sum is σ = 1012502576736. Its totient is φ = 1011521465464.

The previous prime is 1012012021093. The next prime is 1012012021109. The reversal of 1012012021099 is 9901202102101.

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 1012012021099 - 2⁹ = 1012012020587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012012021093) 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, 245274724 + ... + 245278849.

It is an arithmetic number, because the mean of its divisors is an integer number (253125644184).

Almost surely, 2^{1012012021099} is an apocalyptic number.

1012012021099 is a deficient number, since it is larger than the sum of its proper divisors (490555637).

1012012021099 is an equidigital number, since it uses as much as digits as its factorization.

1012012021099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490555636.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 1012012021099 in words is "one trillion, twelve billion, twelve million, twenty-one thousand, ninety-nine".