71210122 has 8 divisors (see below), whose sum is σ = 107133156. Its totient is φ = 35499072.

The previous prime is 71210063. The next prime is 71210129. The reversal of 71210122 is 22101217.

It can be written as a sum of positive squares in 2 ways, for example, as 57289761 + 13920361 = 7569^2 + 3731^2 .

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 = 71210096 and 71210105.

It is not an unprimeable number, because it can be changed into a prime (71210129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52153 + ... + 53500.

Almost surely, 2^71210122 is an apocalyptic number.

71210122 is a deficient number, since it is larger than the sum of its proper divisors (35923034).

71210122 is a wasteful number, since it uses less digits than its factorization.

71210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105992.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 71210122 is about 8438.6090085985. The cubic root of 71210122 is about 414.4898594469.

Adding to 71210122 its reverse (22101217), we get a palindrome (93311339).

The spelling of 71210122 in words is "seventy-one million, two hundred ten thousand, one hundred twenty-two".