22121368 has 16 divisors (see below), whose sum is σ = 41806080. Its totient is φ = 10973088.

The previous prime is 22121353. The next prime is 22121371. The reversal of 22121368 is 86312122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9871 + ... + 11902.

It is an arithmetic number, because the mean of its divisors is an integer number (2612880).

Almost surely, 2^22121368 is an apocalyptic number.

It is an amenable number.

22121368 is a deficient number, since it is larger than the sum of its proper divisors (19684712).

22121368 is a wasteful number, since it uses less digits than its factorization.

22121368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21906 (or 21902 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 22121368 is about 4703.3358374669. The cubic root of 22121368 is about 280.7182579849.

The spelling of 22121368 in words is "twenty-two million, one hundred twenty-one thousand, three hundred sixty-eight".