221332120300231 has 4 divisors (see below), whose sum is σ = 224635584782392. Its totient is φ = 218028655818072.

The previous prime is 221332120300183. The next prime is 221332120300241. The reversal of 221332120300231 is 132003021233122.

221332120300231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221332120300231 - 2⁷ = 221332120300103 is a prime.

It is a super-2 number, since 2×221332120300231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221332120300196 and 221332120300205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332120300241) 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, 1651732240980 + ... + 1651732241113.

It is an arithmetic number, because the mean of its divisors is an integer number (56158896195598).

Almost surely, 2^{221332120300231} is an apocalyptic number.

221332120300231 is a deficient number, since it is larger than the sum of its proper divisors (3303464482161).

221332120300231 is an equidigital number, since it uses as much as digits as its factorization.

221332120300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303464482160.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221332120300231 its reverse (132003021233122), we get a palindrome (353335141533353).

The spelling of 221332120300231 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, one hundred twenty million, three hundred thousand, two hundred thirty-one".