1020120212099 has 4 divisors (see below), whose sum is σ = 1021500619080. Its totient is φ = 1018739805120.

The previous prime is 1020120212039. The next prime is 1020120212141. The reversal of 1020120212099 is 9902120210201.

1020120212099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1020120212099 - 2⁸ = 1020120211843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020120212039) 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, 690202382 + ... + 690203859.

It is an arithmetic number, because the mean of its divisors is an integer number (255375154770).

Almost surely, 2^{1020120212099} is an apocalyptic number.

1020120212099 is a deficient number, since it is larger than the sum of its proper divisors (1380406981).

1020120212099 is an equidigital number, since it uses as much as digits as its factorization.

1020120212099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380406980.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 1020120212099 in words is "one trillion, twenty billion, one hundred twenty million, two hundred twelve thousand, ninety-nine".