202102211982 has 32 divisors (see below), whose sum is σ = 441049069440. Its totient is φ = 61229373920.

The previous prime is 202102211981. The next prime is 202102211989. The reversal of 202102211982 is 289112201202.

202102211982 is digitally balanced in base 2, 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 (202102211981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44232 + ... + 637307.

It is an arithmetic number, because the mean of its divisors is an integer number (13782783420).

Almost surely, 2^202102211982 is an apocalyptic number.

202102211982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202102211982 is an abundant number, since it is smaller than the sum of its proper divisors (238946857458).

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

202102211982 is a wasteful number, since it uses less digits than its factorization.

202102211982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686048.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 202102211982 in words is "two hundred two billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-two".