221004111443413 has 4 divisors (see below), whose sum is σ = 232635906782560. Its totient is φ = 209372316104268.

The previous prime is 221004111443399. The next prime is 221004111443417. The reversal of 221004111443413 is 314344111400122.

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 221004111443413 - 2²⁵ = 221004077888981 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 (221004111443417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5815897669545 + ... + 5815897669582.

It is an arithmetic number, because the mean of its divisors is an integer number (58158976695640).

Almost surely, 2^{221004111443413} is an apocalyptic number.

It is an amenable number.

221004111443413 is a deficient number, since it is larger than the sum of its proper divisors (11631795339147).

221004111443413 is a wasteful number, since it uses less digits than its factorization.

221004111443413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11631795339146.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 221004111443413 its reverse (314344111400122), we get a palindrome (535348222843535).

The spelling of 221004111443413 in words is "two hundred twenty-one trillion, four billion, one hundred eleven million, four hundred forty-three thousand, four hundred thirteen".