2021020221099 has 32 divisors (see below), whose sum is σ = 3125022600960. Its totient is φ = 1148905296000.

The previous prime is 2021020221097. The next prime is 2021020221133. The reversal of 2021020221099 is 9901220201202.

It is not a de Polignac number, because 2021020221099 - 2¹ = 2021020221097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021020221097) 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 31 ways as a sum of consecutive naturals, for example, 15893692 + ... + 16020345.

It is an arithmetic number, because the mean of its divisors is an integer number (97656956280).

Almost surely, 2^{2021020221099} is an apocalyptic number.

2021020221099 is a deficient number, since it is larger than the sum of its proper divisors (1104002379861).

2021020221099 is a wasteful number, since it uses less digits than its factorization.

2021020221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31914171.

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

The spelling of 2021020221099 in words is "two trillion, twenty-one billion, twenty million, two hundred twenty-one thousand, ninety-nine".