221301404413 has 4 divisors (see below), whose sum is σ = 221307480448. Its totient is φ = 221295328380.

The previous prime is 221301404383. The next prime is 221301404431. The reversal of 221301404413 is 314404103122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221301404413 - 2²⁵ = 221267849981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221301404483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2983053 + ... + 3056338.

It is an arithmetic number, because the mean of its divisors is an integer number (55326870112).

Almost surely, 2^221301404413 is an apocalyptic number.

It is an amenable number.

221301404413 is a deficient number, since it is larger than the sum of its proper divisors (6076035).

221301404413 is an equidigital number, since it uses as much as digits as its factorization.

221301404413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076034.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221301404413 its reverse (314404103122), we get a palindrome (535705507535).

The spelling of 221301404413 in words is "two hundred twenty-one billion, three hundred one million, four hundred four thousand, four hundred thirteen".