21633221247348 has 48 divisors (see below), whose sum is σ = 51377380248320. Its totient is φ = 7082855222400.

The previous prime is 21633221247317. The next prime is 21633221247403. The reversal of 21633221247348 is 84374212233612.

It is a happy number.

It is a super-3 number, since 3×21633221247348³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21633221247297 and 21633221247306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20322748 + ... + 21360723.

Almost surely, 2^{21633221247348} is an apocalyptic number.

It is an amenable number.

21633221247348 is an abundant number, since it is smaller than the sum of its proper divisors (29744159000972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21633221247348 is a wasteful number, since it uses less digits than its factorization.

21633221247348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41684248 (or 41684246 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 48.

The spelling of 21633221247348 in words is "twenty-one trillion, six hundred thirty-three billion, two hundred twenty-one million, two hundred forty-seven thousand, three hundred forty-eight".