85222222 has 16 divisors (see below), whose sum is σ = 134174880. Its totient is φ = 40519072.

The previous prime is 85222187. The next prime is 85222261. The reversal of 85222222 is 22222258.

85222222 is a modest number, since divided by 22222 gives 852 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604 + ... + 13312.

It is an arithmetic number, because the mean of its divisors is an integer number (8385930).

Almost surely, 2^85222222 is an apocalyptic number.

85222222 is a deficient number, since it is larger than the sum of its proper divisors (48952658).

85222222 is a wasteful number, since it uses less digits than its factorization.

85222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907.

The product of its digits is 2560, while the sum is 25.

The square root of 85222222 is about 9231.5882707149. The cubic root of 85222222 is about 440.0657993883.

The spelling of 85222222 in words is "eighty-five million, two hundred twenty-two thousand, two hundred twenty-two".