221000111213 has 16 divisors (see below), whose sum is σ = 257938318080. Its totient is φ = 185445744000.

The previous prime is 221000111083. The next prime is 221000111221. The reversal of 221000111213 is 312111000122.

It is a cyclic number.

It is not a de Polignac number, because 221000111213 - 2⁸ = 221000110957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000111273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1693193 + ... + 1819038.

It is an arithmetic number, because the mean of its divisors is an integer number (16121144880).

Almost surely, 2^221000111213 is an apocalyptic number.

It is an amenable number.

221000111213 is a deficient number, since it is larger than the sum of its proper divisors (36938206867).

221000111213 is a wasteful number, since it uses less digits than its factorization.

221000111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512428.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221000111213 its reverse (312111000122), we get a palindrome (533111111335).

The spelling of 221000111213 in words is "two hundred twenty-one billion, one hundred eleven thousand, two hundred thirteen".