220014421 has 12 divisors (see below), whose sum is σ = 242353132. Its totient is φ = 199584000.

The previous prime is 220014413. The next prime is 220014439. The reversal of 220014421 is 124410022.

It can be written as a sum of positive squares in 2 ways, for example, as 127373796 + 92640625 = 11286^2 + 9625^2 .

It is not a de Polignac number, because 220014421 - 2³ = 220014413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220014395 and 220014404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220014401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63781 + ... + 67141.

Almost surely, 2^220014421 is an apocalyptic number.

It is an amenable number.

220014421 is a deficient number, since it is larger than the sum of its proper divisors (22338711).

220014421 is a wasteful number, since it uses less digits than its factorization.

220014421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924 (or 3913 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 220014421 is about 14832.8830980359. The cubic root of 220014421 is about 603.6942638230.

Adding to 220014421 its reverse (124410022), we get a palindrome (344424443).

The spelling of 220014421 in words is "two hundred twenty million, fourteen thousand, four hundred twenty-one".