115722221142 has 64 divisors (see below), whose sum is σ = 265860829440. Its totient is φ = 33210777600.

The previous prime is 115722221141. The next prime is 115722221191. The reversal of 115722221142 is 241122227511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115722221141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4291542 + ... + 4318422.

It is an arithmetic number, because the mean of its divisors is an integer number (4154075460).

Almost surely, 2^115722221142 is an apocalyptic number.

115722221142 is an abundant number, since it is smaller than the sum of its proper divisors (150138608298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115722221142 is a wasteful number, since it uses less digits than its factorization.

115722221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30349.

The product of its digits is 4480, while the sum is 30.

Adding to 115722221142 its reverse (241122227511), we get a palindrome (356844448653).

The spelling of 115722221142 in words is "one hundred fifteen billion, seven hundred twenty-two million, two hundred twenty-one thousand, one hundred forty-two".