22106420547 has 4 divisors (see below), whose sum is σ = 29475227400. Its totient is φ = 14737613696.

The previous prime is 22106420533. The next prime is 22106420573. The reversal of 22106420547 is 74502460122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22106420547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22106420047) 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, 3684403422 + ... + 3684403427.

It is an arithmetic number, because the mean of its divisors is an integer number (7368806850).

Almost surely, 2^22106420547 is an apocalyptic number.

22106420547 is a deficient number, since it is larger than the sum of its proper divisors (7368806853).

22106420547 is an equidigital number, since it uses as much as digits as its factorization.

22106420547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368806852.

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 22106420547 its reverse (74502460122), we get a palindrome (96608880669).

The spelling of 22106420547 in words is "twenty-two billion, one hundred six million, four hundred twenty thousand, five hundred forty-seven".