21024032240204 has 12 divisors (see below), whose sum is σ = 42048064480464. Its totient is φ = 9010299531504.

The previous prime is 21024032240203. The next prime is 21024032240249. The reversal of 21024032240204 is 40204223042012.

21024032240204 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21024032240203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375429147119 + ... + 375429147174.

It is an arithmetic number, because the mean of its divisors is an integer number (3504005373372).

Almost surely, 2^{21024032240204} is an apocalyptic number.

It is an amenable number.

21024032240204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21024032240204 is a wasteful number, since it uses less digits than its factorization.

21024032240204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750858294304 (or 750858294302 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 21024032240204 its reverse (40204223042012), we get a palindrome (61228255282216).

The spelling of 21024032240204 in words is "twenty-one trillion, twenty-four billion, thirty-two million, two hundred forty thousand, two hundred four".