202128220099 has 12 divisors (see below), whose sum is σ = 218923219152. Its totient is φ = 186536719200.

The previous prime is 202128220097. The next prime is 202128220103. The reversal of 202128220099 is 990022821202.

It is not a de Polignac number, because 202128220099 - 2¹ = 202128220097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202128220097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 605889 + ... + 878269.

It is an arithmetic number, because the mean of its divisors is an integer number (18243601596).

Almost surely, 2^202128220099 is an apocalyptic number.

202128220099 is a deficient number, since it is larger than the sum of its proper divisors (16794999053).

202128220099 is a wasteful number, since it uses less digits than its factorization.

202128220099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276798 (or 276785 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 202128220099 in words is "two hundred two billion, one hundred twenty-eight million, two hundred twenty thousand, ninety-nine".