222451274321 has 4 divisors (see below), whose sum is σ = 222712062132. Its totient is φ = 222190486512.

The previous prime is 222451274303. The next prime is 222451274359. The reversal of 222451274321 is 123472154222.

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 11090406721 + 211360867600 = 105311^2 + 459740^2 .

It is a cyclic number.

It is not a de Polignac number, because 222451274321 - 2³⁴ = 205271405137 is a prime.

It is a super-2 number, since 2×222451274321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222451273321) 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, 130392626 + ... + 130394331.

It is an arithmetic number, because the mean of its divisors is an integer number (55678015533).

Almost surely, 2^222451274321 is an apocalyptic number.

It is an amenable number.

222451274321 is a deficient number, since it is larger than the sum of its proper divisors (260787811).

222451274321 is an equidigital number, since it uses as much as digits as its factorization.

222451274321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260787810.

The product of its digits is 53760, while the sum is 35.

The spelling of 222451274321 in words is "two hundred twenty-two billion, four hundred fifty-one million, two hundred seventy-four thousand, three hundred twenty-one".