221413220403 has 8 divisors (see below), whose sum is σ = 298140574416. Its totient is φ = 146147340000.

The previous prime is 221413220383. The next prime is 221413220443. The reversal of 221413220403 is 304022314122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221413220403 - 2¹² = 221413216307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221413220443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365368048 + ... + 365368653.

It is an arithmetic number, because the mean of its divisors is an integer number (37267571802).

Almost surely, 2^221413220403 is an apocalyptic number.

221413220403 is a deficient number, since it is larger than the sum of its proper divisors (76727354013).

221413220403 is a wasteful number, since it uses less digits than its factorization.

221413220403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730736805.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221413220403 its reverse (304022314122), we get a palindrome (525435534525).

The spelling of 221413220403 in words is "two hundred twenty-one billion, four hundred thirteen million, two hundred twenty thousand, four hundred three".