21224003481608 has 32 divisors (see below), whose sum is σ = 39991378944000. Its totient is φ = 10559704631040.

The previous prime is 21224003481517. The next prime is 21224003481613. The reversal of 21224003481608 is 80618430042212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837568 + ... + 6769391.

It is an arithmetic number, because the mean of its divisors is an integer number (1249730592000).

Almost surely, 2^{21224003481608} is an apocalyptic number.

It is an amenable number.

21224003481608 is a deficient number, since it is larger than the sum of its proper divisors (18767375462392).

21224003481608 is a wasteful number, since it uses less digits than its factorization.

21224003481608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608485 (or 8608481 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 21224003481608 in words is "twenty-one trillion, two hundred twenty-four billion, three million, four hundred eighty-one thousand, six hundred eight".