221202113403 has 4 divisors (see below), whose sum is σ = 294936151208. Its totient is φ = 147468075600.

The previous prime is 221202113387. The next prime is 221202113441. The reversal of 221202113403 is 304311202122.

221202113403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 221202113403 - 2⁴ = 221202113387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221202113403.

It is not an unprimeable number, because it can be changed into a prime (221202113453) 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 3 ways as a sum of consecutive naturals, for example, 36867018898 + ... + 36867018903.

It is an arithmetic number, because the mean of its divisors is an integer number (73734037802).

Almost surely, 2^221202113403 is an apocalyptic number.

221202113403 is a deficient number, since it is larger than the sum of its proper divisors (73734037805).

221202113403 is an equidigital number, since it uses as much as digits as its factorization.

221202113403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73734037804.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221202113403 its reverse (304311202122), we get a palindrome (525513315525).

The spelling of 221202113403 in words is "two hundred twenty-one billion, two hundred two million, one hundred thirteen thousand, four hundred three".