221213022302403 has 16 divisors (see below), whose sum is σ = 339023788970400. Its totient is φ = 142389991366560.

The previous prime is 221213022302401. The next prime is 221213022302413. The reversal of 221213022302403 is 304203220312122.

221213022302403 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 1 + 30 + 223 + 0 + 2 + 403 = 666.

It is not a de Polignac number, because 221213022302403 - 2¹ = 221213022302401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (221213022302401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141259911288 + ... + 141259912853.

It is an arithmetic number, because the mean of its divisors is an integer number (21188986810650).

Almost surely, 2^{221213022302403} is an apocalyptic number.

221213022302403 is a deficient number, since it is larger than the sum of its proper divisors (117810766667997).

221213022302403 is a wasteful number, since it uses less digits than its factorization.

221213022302403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282519824179 (or 282519824173 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 221213022302403 its reverse (304203220312122), we get a palindrome (525416242614525).

The spelling of 221213022302403 in words is "two hundred twenty-one trillion, two hundred thirteen billion, twenty-two million, three hundred two thousand, four hundred three".