214222520 has 16 divisors (see below), whose sum is σ = 482000760. Its totient is φ = 85688992.

The previous prime is 214222513. The next prime is 214222531. The reversal of 214222520 is 25222412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 214222492 and 214222501.

It is a congruent number.

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, 2677742 + ... + 2677821.

Almost surely, 2^214222520 is an apocalyptic number.

214222520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214222520 is an abundant number, since it is smaller than the sum of its proper divisors (267778240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214222520 is a wasteful number, since it uses less digits than its factorization.

214222520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355574 (or 5355570 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 214222520 is about 14636.3424392845. The cubic root of 214222520 is about 598.3496499216.

Adding to 214222520 its reverse (25222412), we get a palindrome (239444932).

The spelling of 214222520 in words is "two hundred fourteen million, two hundred twenty-two thousand, five hundred twenty".