21224366320010 has 64 divisors (see below), whose sum is σ = 45248216785920. Its totient is φ = 7013382754560.

The previous prime is 21224366319977. The next prime is 21224366320037. The reversal of 21224366320010 is 1002366342212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8254706 + ... + 10516125.

It is an arithmetic number, because the mean of its divisors is an integer number (707003387280).

Almost surely, 2^{21224366320010} is an apocalyptic number.

21224366320010 is an abundant number, since it is smaller than the sum of its proper divisors (24023850465910).

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

21224366320010 is a wasteful number, since it uses less digits than its factorization.

21224366320010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771431.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 21224366320010 in words is "twenty-one trillion, two hundred twenty-four billion, three hundred sixty-six million, three hundred twenty thousand, ten".