213221221103 has 8 divisors (see below), whose sum is σ = 232611370320. Its totient is φ = 193832138880.

The previous prime is 213221221063. The next prime is 213221221139. The reversal of 213221221103 is 301122122312.

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

It is a cyclic number.

It is not a de Polignac number, because 213221221103 - 2⁸ = 213221220847 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 (213221221153) 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, 184253 + ... + 678521.

It is an arithmetic number, because the mean of its divisors is an integer number (29076421290).

Almost surely, 2^213221221103 is an apocalyptic number.

213221221103 is a deficient number, since it is larger than the sum of its proper divisors (19390149217).

213221221103 is a wasteful number, since it uses less digits than its factorization.

213221221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533497.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213221221103 its reverse (301122122312), we get a palindrome (514343343415).

The spelling of 213221221103 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred three".