22113242 has 4 divisors (see below), whose sum is σ = 33169866. Its totient is φ = 11056620.

The previous prime is 22113241. The next prime is 22113253. The reversal of 22113242 is 24231122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24231122 = 2 ⋅12115561.

It can be written as a sum of positive squares in only one way, i.e., 15295921 + 6817321 = 3911^2 + 2611^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22113242.

It is not an unprimeable number, because it can be changed into a prime (22113241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528309 + ... + 5528312.

Almost surely, 2^22113242 is an apocalyptic number.

22113242 is a deficient number, since it is larger than the sum of its proper divisors (11056624).

22113242 is a wasteful number, since it uses less digits than its factorization.

22113242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11056623.

The product of its digits is 192, while the sum is 17.

The square root of 22113242 is about 4702.4719031590. The cubic root of 22113242 is about 280.6838810281.

Adding to 22113242 its reverse (24231122), we get a palindrome (46344364).

The spelling of 22113242 in words is "twenty-two million, one hundred thirteen thousand, two hundred forty-two".