21322108 has 6 divisors (see below), whose sum is σ = 37313696. Its totient is φ = 10661052.

The previous prime is 21322099. The next prime is 21322117. The reversal of 21322108 is 80122312.

It is an interprime number because it is at equal distance from previous prime (21322099) and next prime (21322117).

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, 2665260 + ... + 2665267.

Almost surely, 2^21322108 is an apocalyptic number.

It is an amenable number.

21322108 is a deficient number, since it is larger than the sum of its proper divisors (15991588).

21322108 is a wasteful number, since it uses less digits than its factorization.

21322108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330531 (or 5330529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 21322108 is about 4617.5868156430. The cubic root of 21322108 is about 277.2958561342.

The spelling of 21322108 in words is "twenty-one million, three hundred twenty-two thousand, one hundred eight".