22061321611 has 8 divisors (see below), whose sum is σ = 25213846784. Its totient is φ = 18909023400.

The previous prime is 22061321543. The next prime is 22061321693. The reversal of 22061321611 is 11612316022.

It is a happy number.

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 22061321611 - 2⁷ = 22061321483 is a prime.

It is a super-2 number, since 2×22061321611² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22061321911) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 307186 + ... + 372136.

It is an arithmetic number, because the mean of its divisors is an integer number (3151730848).

Almost surely, 2^22061321611 is an apocalyptic number.

22061321611 is a deficient number, since it is larger than the sum of its proper divisors (3152525173).

22061321611 is an equidigital number, since it uses as much as digits as its factorization.

22061321611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113481.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 22061321611 its reverse (11612316022), we get a palindrome (33673637633).

The spelling of 22061321611 in words is "twenty-two billion, sixty-one million, three hundred twenty-one thousand, six hundred eleven".