85422111 has 16 divisors (see below), whose sum is σ = 115591680. Its totient is φ = 56105280.

The previous prime is 85422109. The next prime is 85422121. The reversal of 85422111 is 11122458.

It is not a de Polignac number, because 85422111 - 2¹ = 85422109 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85422121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123276 + ... + 123966.

It is an arithmetic number, because the mean of its divisors is an integer number (7224480).

Almost surely, 2^85422111 is an apocalyptic number.

85422111 is a deficient number, since it is larger than the sum of its proper divisors (30169569).

85422111 is a wasteful number, since it uses less digits than its factorization.

85422111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its digits is 640, while the sum is 24.

The square root of 85422111 is about 9242.4082900508. The cubic root of 85422111 is about 440.4095893312.

Adding to 85422111 its reverse (11122458), we get a palindrome (96544569).

The spelling of 85422111 in words is "eighty-five million, four hundred twenty-two thousand, one hundred eleven".