71222 has 8 divisors (see below), whose sum is σ = 108000. Its totient is φ = 35224.

The previous prime is 71209. The next prime is 71233. The reversal of 71222 is 22217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 71197 and 71206.

It is a congruent number.

It is an unprimeable number.

71222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (13500).

2⁷¹²²² is an apocalyptic number.

71222 is a deficient number, since it is larger than the sum of its proper divisors (36778).

71222 is a wasteful number, since it uses less digits than its factorization.

71222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its digits is 56, while the sum is 14.

The square root of 71222 is about 266.8745023415. The cubic root of 71222 is about 41.4512904096.

Adding to 71222 its reverse (22217), we get a palindrome (93439).

The spelling of 71222 in words is "seventy-one thousand, two hundred twenty-two", and thus it is an iban number.