22015415441 has 4 divisors (see below), whose sum is σ = 22430800692. Its totient is φ = 21600030192.

The previous prime is 22015415419. The next prime is 22015415449. The reversal of 22015415441 is 14451451022.

It is a happy number.

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 20350449025 + 1664966416 = 142655^2 + 40804^2 .

It is a cyclic number.

It is not a de Polignac number, because 22015415441 - 2⁶ = 22015415377 is a prime.

It is a super-3 number, since 3×22015415441³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22015415449) 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, 207692546 + ... + 207692651.

It is an arithmetic number, because the mean of its divisors is an integer number (5607700173).

Almost surely, 2^22015415441 is an apocalyptic number.

It is an amenable number.

22015415441 is a deficient number, since it is larger than the sum of its proper divisors (415385251).

22015415441 is an equidigital number, since it uses as much as digits as its factorization.

22015415441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415385250.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 22015415441 its reverse (14451451022), we get a palindrome (36466866463).

The spelling of 22015415441 in words is "twenty-two billion, fifteen million, four hundred fifteen thousand, four hundred forty-one".