115221342146 has 24 divisors (see below), whose sum is σ = 177689272320. Its totient is φ = 56010460200.

The previous prime is 115221342139. The next prime is 115221342149. The reversal of 115221342146 is 641243122511.

It is not an unprimeable number, because it can be changed into a prime (115221342149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2116415 + ... + 2170173.

It is an arithmetic number, because the mean of its divisors is an integer number (7403719680).

Almost surely, 2^115221342146 is an apocalyptic number.

115221342146 is a deficient number, since it is larger than the sum of its proper divisors (62467930174).

115221342146 is an equidigital number, since it uses as much as digits as its factorization.

115221342146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54110 (or 53959 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

Adding to 115221342146 its reverse (641243122511), we get a palindrome (756464464657).

The spelling of 115221342146 in words is "one hundred fifteen billion, two hundred twenty-one million, three hundred forty-two thousand, one hundred forty-six".