14220621 has 12 divisors (see below), whose sum is σ = 20734272. Its totient is φ = 9391176.

The previous prime is 14220611. The next prime is 14220629. The reversal of 14220621 is 12602241.

14220621 is a `hidden beast` number, since 1 + 42 + 2 + 0 + 621 = 666.

It is not a de Polignac number, because 14220621 - 2¹¹ = 14218573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14220594 and 14220603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14220629) 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, 6421 + ... + 8346.

It is an arithmetic number, because the mean of its divisors is an integer number (1727856).

Almost surely, 2^14220621 is an apocalyptic number.

It is an amenable number.

14220621 is a deficient number, since it is larger than the sum of its proper divisors (6513651).

14220621 is a wasteful number, since it uses less digits than its factorization.

14220621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880 (or 14877 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 14220621 is about 3771.0238662729. The cubic root of 14220621 is about 242.2736528263.

Adding to 14220621 its reverse (12602241), we get a palindrome (26822862).

It can be divided in two parts, 14220 and 621, that added together give a palindrome (14841).

The spelling of 14220621 in words is "fourteen million, two hundred twenty thousand, six hundred twenty-one".