222142281 has 16 divisors (see below), whose sum is σ = 330120000. Its totient is φ = 132046848.

The previous prime is 222142267. The next prime is 222142289. The reversal of 222142281 is 182241222.

It is not a de Polignac number, because 222142281 - 2⁷ = 222142153 is a prime.

It is a super-2 number, since 2×222142281² = 98694386015765922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222142289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113656 + ... + 115593.

It is an arithmetic number, because the mean of its divisors is an integer number (20632500).

Almost surely, 2^222142281 is an apocalyptic number.

It is an amenable number.

222142281 is a deficient number, since it is larger than the sum of its proper divisors (107977719).

222142281 is a wasteful number, since it uses less digits than its factorization.

222142281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229288.

The product of its digits is 1024, while the sum is 24.

The square root of 222142281 is about 14904.4382987082. The cubic root of 222142281 is about 605.6342241457.

The spelling of 222142281 in words is "two hundred twenty-two million, one hundred forty-two thousand, two hundred eighty-one".