22742111 has 8 divisors (see below), whose sum is σ = 26019840. Its totient is φ = 19471608.

The previous prime is 22742059. The next prime is 22742113. The reversal of 22742111 is 11124722.

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 22742111 - 2⁶ = 22742047 is a prime.

It is a super-2 number, since 2×22742111² = 1034407225472642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11390 + ... + 13236.

It is an arithmetic number, because the mean of its divisors is an integer number (3252480).

Almost surely, 2^22742111 is an apocalyptic number.

22742111 is a deficient number, since it is larger than the sum of its proper divisors (3277729).

22742111 is a wasteful number, since it uses less digits than its factorization.

22742111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613.

The product of its digits is 224, while the sum is 20.

The square root of 22742111 is about 4768.8689434708. The cubic root of 22742111 is about 283.3197989690.

Adding to 22742111 its reverse (11124722), we get a palindrome (33866833).

The spelling of 22742111 in words is "twenty-two million, seven hundred forty-two thousand, one hundred eleven".