22402111 has 4 divisors (see below), whose sum is σ = 22447152. Its totient is φ = 22357072.

The previous prime is 22402091. The next prime is 22402169. The reversal of 22402111 is 11120422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22402111 - 2¹³ = 22393919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22402091 and 22402100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21766 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (5611788).

Almost surely, 2^22402111 is an apocalyptic number.

22402111 is a deficient number, since it is larger than the sum of its proper divisors (45041).

22402111 is an equidigital number, since it uses as much as digits as its factorization.

22402111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45040.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22402111 is about 4733.0868363046. The cubic root of 22402111 is about 281.9008042709.

Adding to 22402111 its reverse (11120422), we get a palindrome (33522533).

The spelling of 22402111 in words is "twenty-two million, four hundred two thousand, one hundred eleven".