202221019998 has 48 divisors (see below), whose sum is σ = 442869663600. Its totient is φ = 66683675520.

The previous prime is 202221019997. The next prime is 202221020033. The reversal of 202221019998 is 899910122202.

202221019998 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221019997) 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 23 ways as a sum of consecutive naturals, for example, 559248 + ... + 846876.

It is an arithmetic number, because the mean of its divisors is an integer number (9226451325).

Almost surely, 2^202221019998 is an apocalyptic number.

202221019998 is an abundant number, since it is smaller than the sum of its proper divisors (240648643602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202221019998 is a wasteful number, since it uses less digits than its factorization.

202221019998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288057 (or 288054 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 202221019998 in words is "two hundred two billion, two hundred twenty-one million, nineteen thousand, nine hundred ninety-eight".