22419221 has 8 divisors (see below), whose sum is σ = 25744800. Its totient is φ = 19308240.

The previous prime is 22419179. The next prime is 22419239. The reversal of 22419221 is 12291422.

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 22419221 - 2⁶ = 22419157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22419421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53426 + ... + 53843.

It is an arithmetic number, because the mean of its divisors is an integer number (3218100).

Almost surely, 2^22419221 is an apocalyptic number.

It is an amenable number.

22419221 is a deficient number, since it is larger than the sum of its proper divisors (3325579).

22419221 is a wasteful number, since it uses less digits than its factorization.

22419221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107299.

The product of its digits is 576, while the sum is 23.

The square root of 22419221 is about 4734.8939798057. The cubic root of 22419221 is about 281.9725548798.

The spelling of 22419221 in words is "twenty-two million, four hundred nineteen thousand, two hundred twenty-one".