115244202101221 has 8 divisors (see below), whose sum is σ = 119105604382464. Its totient is φ = 111391790280960.

The previous prime is 115244202101167. The next prime is 115244202101251. The reversal of 115244202101221 is 122101202442511.

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 not a de Polignac number, because 115244202101221 - 2³³ = 115235612166629 is a prime.

It is a super-2 number, since 2×115244202101221² (a number of 29 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 115244202101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115244202101251) 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, 2247589180 + ... + 2247640453.

It is an arithmetic number, because the mean of its divisors is an integer number (14888200547808).

Almost surely, 2^{115244202101221} is an apocalyptic number.

It is an amenable number.

115244202101221 is a deficient number, since it is larger than the sum of its proper divisors (3861402281243).

115244202101221 is an equidigital number, since it uses as much as digits as its factorization.

115244202101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495230491.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 115244202101221 its reverse (122101202442511), we get a palindrome (237345404543732).

The spelling of 115244202101221 in words is "one hundred fifteen trillion, two hundred forty-four billion, two hundred two million, one hundred one thousand, two hundred twenty-one".