22556020241 has 4 divisors (see below), whose sum is σ = 22575584292. Its totient is φ = 22536456192.

The previous prime is 22556020231. The next prime is 22556020243. The reversal of 22556020241 is 14202065522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7691290000 + 14864730241 = 87700^2 + 121921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22556020241 is a prime.

It is a super-2 number, since 2×22556020241² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22556020243) 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 3 ways as a sum of consecutive naturals, for example, 9780296 + ... + 9782601.

It is an arithmetic number, because the mean of its divisors is an integer number (5643896073).

Almost surely, 2^22556020241 is an apocalyptic number.

It is an amenable number.

22556020241 is a deficient number, since it is larger than the sum of its proper divisors (19564051).

22556020241 is a wasteful number, since it uses less digits than its factorization.

22556020241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19564050.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 22556020241 its reverse (14202065522), we get a palindrome (36758085763).

The spelling of 22556020241 in words is "twenty-two billion, five hundred fifty-six million, twenty thousand, two hundred forty-one".