71012122 has 4 divisors (see below), whose sum is σ = 106518186. Its totient is φ = 35506060.

The previous prime is 71012119. The next prime is 71012131. The reversal of 71012122 is 22121017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47596201 + 23415921 = 6899^2 + 4839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71012096 and 71012105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17753029 + ... + 17753032.

Almost surely, 2^71012122 is an apocalyptic number.

71012122 is a deficient number, since it is larger than the sum of its proper divisors (35506064).

71012122 is a wasteful number, since it uses less digits than its factorization.

71012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35506063.

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

The square root of 71012122 is about 8426.8690508397. The cubic root of 71012122 is about 414.1053393256.

Adding to 71012122 its reverse (22121017), we get a palindrome (93133139).

The spelling of 71012122 in words is "seventy-one million, twelve thousand, one hundred twenty-two".