20020100220999 has 24 divisors (see below), whose sum is σ = 29042167162320. Its totient is φ = 13289498322048.

The previous prime is 20020100220973. The next prime is 20020100221087. The reversal of 20020100220999 is 99902200102002.

It is not a de Polignac number, because 20020100220999 - 2⁹ = 20020100220487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020100220199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2306622 + ... + 6735035.

It is an arithmetic number, because the mean of its divisors is an integer number (1210090298430).

Almost surely, 2^{20020100220999} is an apocalyptic number.

20020100220999 is a deficient number, since it is larger than the sum of its proper divisors (9022066941321).

20020100220999 is a wasteful number, since it uses less digits than its factorization.

20020100220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042719 (or 9042716 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 20020100220999 in words is "twenty trillion, twenty billion, one hundred million, two hundred twenty thousand, nine hundred ninety-nine".