129055682211 has 4 divisors (see below), whose sum is σ = 172074242952. Its totient is φ = 86037121472.

The previous prime is 129055682209. The next prime is 129055682221. The reversal of 129055682211 is 112286550921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112286550921 = 3 ⋅37428850307.

It is a cyclic number.

It is not a de Polignac number, because 129055682211 - 2¹ = 129055682209 is a prime.

It is a super-2 number, since 2×129055682211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129055682221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21509280366 + ... + 21509280371.

It is an arithmetic number, because the mean of its divisors is an integer number (43018560738).

Almost surely, 2^129055682211 is an apocalyptic number.

129055682211 is a deficient number, since it is larger than the sum of its proper divisors (43018560741).

129055682211 is an equidigital number, since it uses as much as digits as its factorization.

129055682211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43018560740.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 129055682211 in words is "one hundred twenty-nine billion, fifty-five million, six hundred eighty-two thousand, two hundred eleven".