22021348 has 6 divisors (see below), whose sum is σ = 38537366. Its totient is φ = 11010672.

The previous prime is 22021331. The next prime is 22021357. The reversal of 22021348 is 84312022.

It can be written as a sum of positive squares in only one way, i.e., 18249984 + 3771364 = 4272^2 + 1942^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752665 + ... + 2752672.

Almost surely, 2^22021348 is an apocalyptic number.

It is an amenable number.

22021348 is a deficient number, since it is larger than the sum of its proper divisors (16516018).

22021348 is a wasteful number, since it uses less digits than its factorization.

22021348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505341 (or 5505339 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 22021348 is about 4692.6909124723. The cubic root of 22021348 is about 280.2945370014.

The spelling of 22021348 in words is "twenty-two million, twenty-one thousand, three hundred forty-eight".