129271099282 has 16 divisors (see below), whose sum is σ = 209171188800. Its totient is φ = 59563971792.

The previous prime is 129271099267. The next prime is 129271099283. The reversal of 129271099282 is 282990172921.

It is a super-2 number, since 2×129271099282² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129271099283) 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, 4134648 + ... + 4165795.

It is an arithmetic number, because the mean of its divisors is an integer number (13073199300).

Almost surely, 2^129271099282 is an apocalyptic number.

129271099282 is a deficient number, since it is larger than the sum of its proper divisors (79900089518).

129271099282 is a wasteful number, since it uses less digits than its factorization.

129271099282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301057.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 129271099282 in words is "one hundred twenty-nine billion, two hundred seventy-one million, ninety-nine thousand, two hundred eighty-two".