223251622045 has 4 divisors (see below), whose sum is σ = 267901946460. Its totient is φ = 178601297632.

The previous prime is 223251622031. The next prime is 223251622063. The reversal of 223251622045 is 540226152322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540226152322 = 2 ⋅270113076161.

It can be written as a sum of positive squares in 2 ways, for example, as 155587646916 + 67663975129 = 394446^2 + 260123^2 .

It is a cyclic number.

It is not a de Polignac number, because 223251622045 - 2²¹ = 223249524893 is a prime.

It is a super-3 number, since 3×223251622045³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223251622045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22325162200 + ... + 22325162209.

It is an arithmetic number, because the mean of its divisors is an integer number (66975486615).

Almost surely, 2^223251622045 is an apocalyptic number.

It is an amenable number.

223251622045 is a deficient number, since it is larger than the sum of its proper divisors (44650324415).

223251622045 is an equidigital number, since it uses as much as digits as its factorization.

223251622045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44650324414.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 223251622045 its reverse (540226152322), we get a palindrome (763477774367).

The spelling of 223251622045 in words is "two hundred twenty-three billion, two hundred fifty-one million, six hundred twenty-two thousand, forty-five".