220111129 has 8 divisors (see below), whose sum is σ = 259670528. Its totient is φ = 182580480.

The previous prime is 220111097. The next prime is 220111153. The reversal of 220111129 is 921111022.

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 220111129 - 2⁵ = 220111097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506952 + ... + 507385.

It is an arithmetic number, because the mean of its divisors is an integer number (32458816).

Almost surely, 2^220111129 is an apocalyptic number.

It is an amenable number.

220111129 is a deficient number, since it is larger than the sum of its proper divisors (39559399).

220111129 is a wasteful number, since it uses less digits than its factorization.

220111129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014375.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 220111129 is about 14836.1426590607. The cubic root of 220111129 is about 603.7827027424.

The spelling of 220111129 in words is "two hundred twenty million, one hundred eleven thousand, one hundred twenty-nine".