71222567231 has 8 divisors (see below), whose sum is σ = 71473281264. Its totient is φ = 70971975360.

The previous prime is 71222567203. The next prime is 71222567261. The reversal of 71222567231 is 13276522217.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71222567231 is a prime.

It is a super-2 number, since 2×71222567231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71222567261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228211 + ... + 1284891.

It is an arithmetic number, because the mean of its divisors is an integer number (8934160158).

Almost surely, 2^71222567231 is an apocalyptic number.

71222567231 is a deficient number, since it is larger than the sum of its proper divisors (250714033).

71222567231 is a wasteful number, since it uses less digits than its factorization.

71222567231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61081.

The product of its digits is 70560, while the sum is 38.

The spelling of 71222567231 in words is "seventy-one billion, two hundred twenty-two million, five hundred sixty-seven thousand, two hundred thirty-one".