21225314 has 8 divisors (see below), whose sum is σ = 34732368. Its totient is φ = 9647860.

The previous prime is 21225311. The next prime is 21225317. The reversal of 21225314 is 41352212.

It is an interprime number because it is at equal distance from previous prime (21225311) and next prime (21225317).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21225311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482372 + ... + 482415.

It is an arithmetic number, because the mean of its divisors is an integer number (4341546).

Almost surely, 2^21225314 is an apocalyptic number.

21225314 is a deficient number, since it is larger than the sum of its proper divisors (13507054).

21225314 is a wasteful number, since it uses less digits than its factorization.

21225314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964800.

The product of its digits is 480, while the sum is 20.

The square root of 21225314 is about 4607.0938779235. The cubic root of 21225314 is about 276.8756148043.

Adding to 21225314 its reverse (41352212), we get a palindrome (62577526).

The spelling of 21225314 in words is "twenty-one million, two hundred twenty-five thousand, three hundred fourteen".