22721014 has 8 divisors (see below), whose sum is σ = 34138440. Its totient is φ = 11341536.

The previous prime is 22720981. The next prime is 22721021. The reversal of 22721014 is 41012722.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22720982 and 22721000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7939 + ... + 10414.

It is an arithmetic number, because the mean of its divisors is an integer number (4267305).

Almost surely, 2^22721014 is an apocalyptic number.

22721014 is a deficient number, since it is larger than the sum of its proper divisors (11417426).

22721014 is a wasteful number, since it uses less digits than its factorization.

22721014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18974.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 22721014 is about 4766.6564801756. The cubic root of 22721014 is about 283.2321634951.

Adding to 22721014 its reverse (41012722), we get a palindrome (63733736).

The spelling of 22721014 in words is "twenty-two million, seven hundred twenty-one thousand, fourteen".