22611305242 has 4 divisors (see below), whose sum is σ = 33916957866. Its totient is φ = 11305652620.

The previous prime is 22611305231. The next prime is 22611305333. The reversal of 22611305242 is 24250311622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24250311622 = 2 ⋅12125155811.

It can be written as a sum of positive squares in only one way, i.e., 18662565321 + 3948739921 = 136611^2 + 62839^2 .

It is a super-2 number, since 2×22611305242² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22611305242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652826309 + ... + 5652826312.

Almost surely, 2^22611305242 is an apocalyptic number.

22611305242 is a deficient number, since it is larger than the sum of its proper divisors (11305652624).

22611305242 is a wasteful number, since it uses less digits than its factorization.

22611305242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305652623.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 22611305242 its reverse (24250311622), we get a palindrome (46861616864).

The spelling of 22611305242 in words is "twenty-two billion, six hundred eleven million, three hundred five thousand, two hundred forty-two".