22201993 has 8 divisors (see below), whose sum is σ = 24254496. Its totient is φ = 20155200.

The previous prime is 22201967. The next prime is 22201999. The reversal of 22201993 is 39910222.

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

It is a cyclic number.

It is not a de Polignac number, because 22201993 - 2¹⁷ = 22070921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201999) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14230 + ... + 15712.

It is an arithmetic number, because the mean of its divisors is an integer number (3031812).

Almost surely, 2^22201993 is an apocalyptic number.

It is an amenable number.

22201993 is a deficient number, since it is larger than the sum of its proper divisors (2052503).

22201993 is a wasteful number, since it uses less digits than its factorization.

22201993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 22201993 is about 4711.8990863557. The cubic root of 22201993 is about 281.0588859338.

The spelling of 22201993 in words is "twenty-two million, two hundred one thousand, nine hundred ninety-three".