220004231146 has 16 divisors (see below), whose sum is σ = 377166082176. Its totient is φ = 94283534736.

The previous prime is 220004231099. The next prime is 220004231149. The reversal of 220004231146 is 641132400022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 220004231146.

It is not an unprimeable number, because it can be changed into a prime (220004231149) 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, 22755 + ... + 663721.

It is an arithmetic number, because the mean of its divisors is an integer number (23572880136).

Almost surely, 2^220004231146 is an apocalyptic number.

220004231146 is a deficient number, since it is larger than the sum of its proper divisors (157161851030).

220004231146 is a wasteful number, since it uses less digits than its factorization.

220004231146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665493.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 220004231146 its reverse (641132400022), we get a palindrome (861136631168).

The spelling of 220004231146 in words is "two hundred twenty billion, four million, two hundred thirty-one thousand, one hundred forty-six".