222489481 has 4 divisors (see below), whose sum is σ = 222595732. Its totient is φ = 222383232.

The previous prime is 222489467. The next prime is 222489497. The reversal of 222489481 is 184984222.

222489481 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, and also an emirpimes, since its reverse is a distinct semiprime: 184984222 = 2 ⋅92492111.

It can be written as a sum of positive squares in 2 ways, for example, as 23425600 + 199063881 = 4840^2 + 14109^2 .

It is a cyclic number.

It is not a de Polignac number, because 222489481 - 2¹³ = 222481289 is a prime.

It is a super-2 number, since 2×222489481² = 99003138311298722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222489431) 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, 49920 + ... + 54193.

It is an arithmetic number, because the mean of its divisors is an integer number (55648933).

Almost surely, 2^222489481 is an apocalyptic number.

It is an amenable number.

222489481 is a deficient number, since it is larger than the sum of its proper divisors (106251).

222489481 is a wasteful number, since it uses less digits than its factorization.

222489481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106250.

The product of its digits is 73728, while the sum is 40.

The square root of 222489481 is about 14916.0812883277. The cubic root of 222489481 is about 605.9495877128.

The spelling of 222489481 in words is "two hundred twenty-two million, four hundred eighty-nine thousand, four hundred eighty-one".