12020020210999 has 4 divisors (see below), whose sum is σ = 12139030312200. Its totient is φ = 11901010109800.

The previous prime is 12020020210973. The next prime is 12020020211057. The reversal of 12020020210999 is 99901202002021.

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 12020020210999 - 2⁵ = 12020020210967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020211999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59505050449 + ... + 59505050650.

It is an arithmetic number, because the mean of its divisors is an integer number (3034757578050).

Almost surely, 2^{12020020210999} is an apocalyptic number.

12020020210999 is a deficient number, since it is larger than the sum of its proper divisors (119010101201).

12020020210999 is a wasteful number, since it uses less digits than its factorization.

12020020210999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119010101200.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 12020020210999 in words is "twelve trillion, twenty billion, twenty million, two hundred ten thousand, nine hundred ninety-nine".