223221220312201 has 4 divisors (see below), whose sum is σ = 223228794094612. Its totient is φ = 223213646529792.

The previous prime is 223221220312177. The next prime is 223221220312271. The reversal of 223221220312201 is 102213022122322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57459432040000 + 165761788272201 = 7580200^2 + 12874851^2 .

It is a cyclic number.

It is not a de Polignac number, because 223221220312201 - 2¹⁹ = 223221219787913 is a prime.

It is a super-3 number, since 3×223221220312201³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223221220312271) 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, 3786846996 + ... + 3786905941.

It is an arithmetic number, because the mean of its divisors is an integer number (55807198523653).

Almost surely, 2^{223221220312201} is an apocalyptic number.

It is an amenable number.

223221220312201 is a deficient number, since it is larger than the sum of its proper divisors (7573782411).

223221220312201 is an equidigital number, since it uses as much as digits as its factorization.

223221220312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573782410.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 223221220312201 its reverse (102213022122322), we get a palindrome (325434242434523).

The spelling of 223221220312201 in words is "two hundred twenty-three trillion, two hundred twenty-one billion, two hundred twenty million, three hundred twelve thousand, two hundred one".