14220999 has 12 divisors (see below), whose sum is σ = 22121736. Its totient is φ = 8751312.

The previous prime is 14220977. The next prime is 14221021. The reversal of 14220999 is 99902241.

It is an interprime number because it is at equal distance from previous prime (14220977) and next prime (14221021).

It is not a de Polignac number, because 14220999 - 2¹¹ = 14218951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14220919) 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, 60657 + ... + 60890.

It is an arithmetic number, because the mean of its divisors is an integer number (1843478).

Almost surely, 2^14220999 is an apocalyptic number.

14220999 is a deficient number, since it is larger than the sum of its proper divisors (7900737).

14220999 is a wasteful number, since it uses less digits than its factorization.

14220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121566 (or 121563 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 14220999 is about 3771.0739849544. The cubic root of 14220999 is about 242.2757994421.

The spelling of 14220999 in words is "fourteen million, two hundred twenty thousand, nine hundred ninety-nine".