221034004213 has 4 divisors (see below), whose sum is σ = 241128004608. Its totient is φ = 200940003820.

The previous prime is 221034004201. The next prime is 221034004271. The reversal of 221034004213 is 312400430122.

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 221034004213 - 2¹³ = 221033996021 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 (221034004613) 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, 10047000181 + ... + 10047000202.

It is an arithmetic number, because the mean of its divisors is an integer number (60282001152).

Almost surely, 2^221034004213 is an apocalyptic number.

It is an amenable number.

221034004213 is a deficient number, since it is larger than the sum of its proper divisors (20094000395).

221034004213 is a wasteful number, since it uses less digits than its factorization.

221034004213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20094000394.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221034004213 its reverse (312400430122), we get a palindrome (533434434335).

The spelling of 221034004213 in words is "two hundred twenty-one billion, thirty-four million, four thousand, two hundred thirteen".