22201930 has 8 divisors (see below), whose sum is σ = 39963492. Its totient is φ = 8880768.

The previous prime is 22201909. The next prime is 22201931. The reversal of 22201930 is 3910222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21930489 + 271441 = 4683^2 + 521^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22201898 and 22201907.

It is not an unprimeable number, because it can be changed into a prime (22201931) 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 3 ways as a sum of consecutive naturals, for example, 1110087 + ... + 1110106.

Almost surely, 2^22201930 is an apocalyptic number.

22201930 is a deficient number, since it is larger than the sum of its proper divisors (17761562).

22201930 is a wasteful number, since it uses less digits than its factorization.

22201930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220200.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22201930 is about 4711.8924011484. The cubic root of 22201930 is about 281.0586200909.

The spelling of 22201930 in words is "twenty-two million, two hundred one thousand, nine hundred thirty".