21410222 has 4 divisors (see below), whose sum is σ = 32115336. Its totient is φ = 10705110.

The previous prime is 21410219. The next prime is 21410237. The reversal of 21410222 is 22201412.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21410197 and 21410206.

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 as a sum of consecutive naturals, namely, 5352554 + ... + 5352557.

It is an arithmetic number, because the mean of its divisors is an integer number (8028834).

Almost surely, 2^21410222 is an apocalyptic number.

21410222 is a deficient number, since it is larger than the sum of its proper divisors (10705114).

21410222 is a wasteful number, since it uses less digits than its factorization.

21410222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705113.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 21410222 is about 4627.1181095797. The cubic root of 21410222 is about 277.6773078905.

Adding to 21410222 its reverse (22201412), we get a palindrome (43611634).

The spelling of 21410222 in words is "twenty-one million, four hundred ten thousand, two hundred twenty-two".