222861481 has 4 divisors (see below), whose sum is σ = 225914452. Its totient is φ = 219808512.

The previous prime is 222861479. The next prime is 222861521. The reversal of 222861481 is 184168222.

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 162333081 + 60528400 = 12741^2 + 7780^2 .

It is a cyclic number.

It is not a de Polignac number, because 222861481 - 2¹ = 222861479 is a prime.

It is a super-2 number, since 2×222861481² = 99334479427026722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222861581) 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, 1526376 + ... + 1526521.

It is an arithmetic number, because the mean of its divisors is an integer number (56478613).

Almost surely, 2^222861481 is an apocalyptic number.

It is an amenable number.

222861481 is a deficient number, since it is larger than the sum of its proper divisors (3052971).

222861481 is an equidigital number, since it uses as much as digits as its factorization.

222861481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052970.

The product of its digits is 12288, while the sum is 34.

The square root of 222861481 is about 14928.5458434504. The cubic root of 222861481 is about 606.2871133832.

The spelling of 222861481 in words is "two hundred twenty-two million, eight hundred sixty-one thousand, four hundred eighty-one".