202215199998 has 16 divisors (see below), whose sum is σ = 462206171520. Its totient is φ = 57775771416.

The previous prime is 202215199981. The next prime is 202215200003. The reversal of 202215199998 is 899991512202.

It is a super-2 number, since 2×202215199998² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2407323768 + ... + 2407323851.

It is an arithmetic number, because the mean of its divisors is an integer number (28887885720).

Almost surely, 2^202215199998 is an apocalyptic number.

202215199998 is an abundant number, since it is smaller than the sum of its proper divisors (259990971522).

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

202215199998 is a wasteful number, since it uses less digits than its factorization.

202215199998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814647631.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The spelling of 202215199998 in words is "two hundred two billion, two hundred fifteen million, one hundred ninety-nine thousand, nine hundred ninety-eight".