2120002220999 has 4 divisors (see below), whose sum is σ = 2283079314936. Its totient is φ = 1956925127064.

The previous prime is 2120002220971. The next prime is 2120002221013. The reversal of 2120002220999 is 9990222000212.

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 2120002220999 - 2¹⁶ = 2120002155463 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 (2120002229999) 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, 81538546949 + ... + 81538546974.

It is an arithmetic number, because the mean of its divisors is an integer number (570769828734).

Almost surely, 2^{2120002220999} is an apocalyptic number.

2120002220999 is a deficient number, since it is larger than the sum of its proper divisors (163077093937).

2120002220999 is a wasteful number, since it uses less digits than its factorization.

2120002220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163077093936.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 2120002220999 in words is "two trillion, one hundred twenty billion, two million, two hundred twenty thousand, nine hundred ninety-nine".