71122222001 has 16 divisors (see below), whose sum is σ = 73156608000. Its totient is φ = 69116144448.

The previous prime is 71122221943. The next prime is 71122222019. The reversal of 71122222001 is 10022222117.

It is a cyclic number.

It is not a de Polignac number, because 71122222001 - 2²⁶ = 71055113137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71122222021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2822480 + ... + 2847566.

It is an arithmetic number, because the mean of its divisors is an integer number (4572288000).

Almost surely, 2^71122222001 is an apocalyptic number.

It is an amenable number.

71122222001 is a deficient number, since it is larger than the sum of its proper divisors (2034385999).

71122222001 is a wasteful number, since it uses less digits than its factorization.

71122222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25648.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 71122222001 its reverse (10022222117), we get a palindrome (81144444118).

The spelling of 71122222001 in words is "seventy-one billion, one hundred twenty-two million, two hundred twenty-two thousand, one".