21722000112277 has 8 divisors (see below), whose sum is σ = 21772678613400. Its totient is φ = 21671368911360.

The previous prime is 21722000112221. The next prime is 21722000112331. The reversal of 21722000112277 is 77221100022712.

It can be written as a sum of positive squares in 4 ways, for example, as 989559394756 + 20732440717521 = 994766^2 + 4553289^2 .

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 21722000112277 - 2⁷ = 21722000112149 is a prime.

It is a super-2 number, since 2×21722000112277² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21722000112217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10905424 + ... + 12742537.

It is an arithmetic number, because the mean of its divisors is an integer number (2721584826675).

Almost surely, 2^{21722000112277} is an apocalyptic number.

It is an amenable number.

21722000112277 is a deficient number, since it is larger than the sum of its proper divisors (50678501123).

21722000112277 is a wasteful number, since it uses less digits than its factorization.

21722000112277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23650103.

The product of its (nonzero) digits is 10976, while the sum is 34.

Adding to 21722000112277 its reverse (77221100022712), we get a palindrome (98943100134989).

The spelling of 21722000112277 in words is "twenty-one trillion, seven hundred twenty-two billion, one hundred twelve thousand, two hundred seventy-seven".