222152405 has 32 divisors (see below), whose sum is σ = 282078720. Its totient is φ = 167791680.

The previous prime is 222152401. The next prime is 222152419. The reversal of 222152405 is 504251222.

It is not a de Polignac number, because 222152405 - 2² = 222152401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222152401) 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 31 ways as a sum of consecutive naturals, for example, 1052750 + ... + 1052960.

It is an arithmetic number, because the mean of its divisors is an integer number (8814960).

Almost surely, 2^222152405 is an apocalyptic number.

It is an amenable number.

222152405 is a deficient number, since it is larger than the sum of its proper divisors (59926315).

222152405 is a wasteful number, since it uses less digits than its factorization.

222152405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 222152405 is about 14904.7779252158. Note that the first 3 decimals coincide. The cubic root of 222152405 is about 605.6434244770.

The spelling of 222152405 in words is "two hundred twenty-two million, one hundred fifty-two thousand, four hundred five".