115221244231 has 8 divisors (see below), whose sum is σ = 115347087504. Its totient is φ = 115095449280.

The previous prime is 115221244141. The next prime is 115221244279. The reversal of 115221244231 is 132442122511.

It is a happy number.

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-115221244231 is a prime.

It is a super-2 number, since 2×115221244231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115221244231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115221244631) 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, 6668155 + ... + 6685411.

It is an arithmetic number, because the mean of its divisors is an integer number (14418385938).

Almost surely, 2^115221244231 is an apocalyptic number.

115221244231 is a deficient number, since it is larger than the sum of its proper divisors (125843273).

115221244231 is a wasteful number, since it uses less digits than its factorization.

115221244231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24161.

The product of its digits is 3840, while the sum is 28.

Adding to 115221244231 its reverse (132442122511), we get a palindrome (247663366742).

The spelling of 115221244231 in words is "one hundred fifteen billion, two hundred twenty-one million, two hundred forty-four thousand, two hundred thirty-one".