71012022121 has 8 divisors (see below), whose sum is σ = 74126361600. Its totient is φ = 67949159520.

The previous prime is 71012022119. The next prime is 71012022139. The reversal of 71012022121 is 12122021017.

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

It is a cyclic number.

It is not a de Polignac number, because 71012022121 - 2¹ = 71012022119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71012022101) 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 7 ways as a sum of consecutive naturals, for example, 12866401 + ... + 12871918.

It is an arithmetic number, because the mean of its divisors is an integer number (9265795200).

Almost surely, 2^71012022121 is an apocalyptic number.

It is an amenable number.

71012022121 is a deficient number, since it is larger than the sum of its proper divisors (3114339479).

71012022121 is a wasteful number, since it uses less digits than its factorization.

71012022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25738439.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 71012022121 its reverse (12122021017), we get a palindrome (83134043138).

The spelling of 71012022121 in words is "seventy-one billion, twelve million, twenty-two thousand, one hundred twenty-one".