857106222 has 32 divisors (see below), whose sum is σ = 1964024064. Its totient is φ = 244272000.

The previous prime is 857106209. The next prime is 857106227. The reversal of 857106222 is 222601758.

It is a super-2 number, since 2×857106222² = 1469262151582226568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857106227) 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, 8604 + ... + 42287.

It is an arithmetic number, because the mean of its divisors is an integer number (61375752).

Almost surely, 2^857106222 is an apocalyptic number.

857106222 is an abundant number, since it is smaller than the sum of its proper divisors (1106917842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857106222 is a wasteful number, since it uses less digits than its factorization.

857106222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51304.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 857106222 is about 29276.3765175952. The cubic root of 857106222 is about 949.9007179718.

The spelling of 857106222 in words is "eight hundred fifty-seven million, one hundred six thousand, two hundred twenty-two".