2021120220099 has 4 divisors (see below), whose sum is σ = 2694826960136. Its totient is φ = 1347413480064.

The previous prime is 2021120220089. The next prime is 2021120220101. The reversal of 2021120220099 is 9900220211202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2021120220099 - 2³⁷ = 1883681266627 is a prime.

It is a super-3 number, since 3×2021120220099³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021120220029) 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, 336853370014 + ... + 336853370019.

It is an arithmetic number, because the mean of its divisors is an integer number (673706740034).

Almost surely, 2^{2021120220099} is an apocalyptic number.

2021120220099 is a deficient number, since it is larger than the sum of its proper divisors (673706740037).

2021120220099 is an equidigital number, since it uses as much as digits as its factorization.

2021120220099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673706740036.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 2021120220099 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred twenty thousand, ninety-nine".