222540105 has 16 divisors (see below), whose sum is σ = 356428800. Its totient is φ = 118566528.

The previous prime is 222540091. The next prime is 222540119. The reversal of 222540105 is 501045222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222540091) and next prime (222540119).

It is not a de Polignac number, because 222540105 - 2¹² = 222536009 is a prime.

It is a super-2 number, since 2×222540105² = 99048196666822050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8664 + ... + 22806.

It is an arithmetic number, because the mean of its divisors is an integer number (22276800).

Almost surely, 2^222540105 is an apocalyptic number.

It is an amenable number.

222540105 is a deficient number, since it is larger than the sum of its proper divisors (133888695).

222540105 is a wasteful number, since it uses less digits than its factorization.

222540105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15200.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 222540105 is about 14917.7781522585. The cubic root of 222540105 is about 605.9955423432.

Adding to 222540105 its reverse (501045222), we get a palindrome (723585327).

The spelling of 222540105 in words is "two hundred twenty-two million, five hundred forty thousand, one hundred five".