222150105 has 24 divisors (see below), whose sum is σ = 391377480. Its totient is φ = 116536320.

The previous prime is 222150043. The next prime is 222150107. The reversal of 222150105 is 501051222.

It can be written as a sum of positive squares in 4 ways, for example, as 3583449 + 218566656 = 1893^2 + 14784^2 .

It is not a de Polignac number, because 222150105 - 2⁹ = 222149593 is a prime.

It is a super-2 number, since 2×222150105² = 98701338303022050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222150107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37720 + ... + 43209.

It is an arithmetic number, because the mean of its divisors is an integer number (16307395).

Almost surely, 2^222150105 is an apocalyptic number.

It is an amenable number.

222150105 is a deficient number, since it is larger than the sum of its proper divisors (169227375).

222150105 is a wasteful number, since it uses less digits than its factorization.

222150105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81001 (or 80998 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 222150105 is about 14904.7007685495. The cubic root of 222150105 is about 605.6413343433.

It can be divided in two parts, 2221 and 50105, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 222150105 in words is "two hundred twenty-two million, one hundred fifty thousand, one hundred five".