221300142213 has 4 divisors (see below), whose sum is σ = 295066856288. Its totient is φ = 147533428140.

The previous prime is 221300142211. The next prime is 221300142221. The reversal of 221300142213 is 312241003122.

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 not a de Polignac number, because 221300142213 - 2¹ = 221300142211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221300142213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300142211) 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, 36883357033 + ... + 36883357038.

It is an arithmetic number, because the mean of its divisors is an integer number (73766714072).

Almost surely, 2^221300142213 is an apocalyptic number.

It is an amenable number.

221300142213 is a deficient number, since it is larger than the sum of its proper divisors (73766714075).

221300142213 is an equidigital number, since it uses as much as digits as its factorization.

221300142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73766714074.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221300142213 its reverse (312241003122), we get a palindrome (533541145335).

The spelling of 221300142213 in words is "two hundred twenty-one billion, three hundred million, one hundred forty-two thousand, two hundred thirteen".