220129412 has 12 divisors (see below), whose sum is σ = 401975616. Its totient is φ = 105279240.

The previous prime is 220129373. The next prime is 220129423. The reversal of 220129412 is 214921022.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1196264 + ... + 1196447.

It is an arithmetic number, because the mean of its divisors is an integer number (33497968).

Almost surely, 2^220129412 is an apocalyptic number.

It is an amenable number.

220129412 is a deficient number, since it is larger than the sum of its proper divisors (181846204).

220129412 is a wasteful number, since it uses less digits than its factorization.

220129412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392738 (or 2392736 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 220129412 is about 14836.7588104680. The cubic root of 220129412 is about 603.7994195309.

It can be divided in two parts, 2201 and 29412, that added together give a palindrome (31613).

The spelling of 220129412 in words is "two hundred twenty million, one hundred twenty-nine thousand, four hundred twelve".