21330044242350 has 96 divisors (see below), whose sum is σ = 54175855675104. Its totient is φ = 5551774924800.

The previous prime is 21330044242327. The next prime is 21330044242457. The reversal of 21330044242350 is 5324244003312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5416491 + ... + 8485190.

It is an arithmetic number, because the mean of its divisors is an integer number (564331829949).

Almost surely, 2^{21330044242350} is an apocalyptic number.

21330044242350 is an abundant number, since it is smaller than the sum of its proper divisors (32845811432754).

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

21330044242350 is a wasteful number, since it uses less digits than its factorization.

21330044242350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13901942 (or 13901937 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 21330044242350 its reverse (5324244003312), we get a palindrome (26654288245662).

The spelling of 21330044242350 in words is "twenty-one trillion, three hundred thirty billion, forty-four million, two hundred forty-two thousand, three hundred fifty".