21226102 has 8 divisors (see below), whose sum is σ = 33223536. Its totient is φ = 10151592.

The previous prime is 21226091. The next prime is 21226111. The reversal of 21226102 is 20162212.

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

It is a super-2 number, since 2×21226102² = 901094812228808, which contains 22 as substring.

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, 230673 + ... + 230764.

It is an arithmetic number, because the mean of its divisors is an integer number (4152942).

Almost surely, 2^21226102 is an apocalyptic number.

21226102 is a deficient number, since it is larger than the sum of its proper divisors (11997434).

21226102 is a wasteful number, since it uses less digits than its factorization.

21226102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461462.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21226102 is about 4607.1793974188. The cubic root of 21226102 is about 276.8790411421.

Adding to 21226102 its reverse (20162212), we get a palindrome (41388314).

The spelling of 21226102 in words is "twenty-one million, two hundred twenty-six thousand, one hundred two".