71215997122 has 8 divisors (see below), whose sum is σ = 108176198400. Its totient is φ = 35157264324.

The previous prime is 71215997101. The next prime is 71215997179. The reversal of 71215997122 is 22179951217.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225366922 + ... + 225367237.

It is an arithmetic number, because the mean of its divisors is an integer number (13522024800).

Almost surely, 2^71215997122 is an apocalyptic number.

71215997122 is a deficient number, since it is larger than the sum of its proper divisors (36960201278).

71215997122 is a wasteful number, since it uses less digits than its factorization.

71215997122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450734240.

The product of its digits is 158760, while the sum is 46.

The spelling of 71215997122 in words is "seventy-one billion, two hundred fifteen million, nine hundred ninety-seven thousand, one hundred twenty-two".