71106222 has 32 divisors (see below), whose sum is σ = 156691584. Its totient is φ = 21332000.

The previous prime is 71106221. The next prime is 71106239. The reversal of 71106222 is 22260117.

It is a super-2 number, since 2×71106222² = 10112189614226568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71106221) 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 15 ways as a sum of consecutive naturals, for example, 1333 + ... + 11999.

It is an arithmetic number, because the mean of its divisors is an integer number (4896612).

Almost surely, 2^71106222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71106222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78345792).

71106222 is an abundant number, since it is smaller than the sum of its proper divisors (85585362).

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

71106222 is a wasteful number, since it uses less digits than its factorization.

71106222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10784.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 71106222 is about 8432.4505335045. The cubic root of 71106222 is about 414.2881724898.

Adding to 71106222 its reverse (22260117), we get a palindrome (93366339).

The spelling of 71106222 in words is "seventy-one million, one hundred six thousand, two hundred twenty-two".