222401530 has 16 divisors (see below), whose sum is σ = 431117064. Its totient is φ = 82117440.

The previous prime is 222401527. The next prime is 222401537. The reversal of 222401530 is 35104222.

It can be written as a sum of positive squares in 4 ways, for example, as 184172041 + 38229489 = 13571^2 + 6183^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222401498 and 222401507.

It is not an unprimeable number, because it can be changed into a prime (222401537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855261 + ... + 855520.

Almost surely, 2^222401530 is an apocalyptic number.

222401530 is a deficient number, since it is larger than the sum of its proper divisors (208715534).

222401530 is a wasteful number, since it uses less digits than its factorization.

222401530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710801.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 222401530 is about 14913.1328030029. The cubic root of 222401530 is about 605.8697324077.

Adding to 222401530 its reverse (35104222), we get a palindrome (257505752).

The spelling of 222401530 in words is "two hundred twenty-two million, four hundred one thousand, five hundred thirty".