21004210333030 has 128 divisors (see below), whose sum is σ = 40104175680000. Its totient is φ = 7898475110400.

The previous prime is 21004210333027. The next prime is 21004210333031. The reversal of 21004210333030 is 3033301240012.

It is a junction number, because it is equal to n+sod(n) for n = 21004210332992 and 21004210333010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21004210333031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19984976005 + ... + 19984977055.

It is an arithmetic number, because the mean of its divisors is an integer number (313313872500).

Almost surely, 2^{21004210333030} is an apocalyptic number.

21004210333030 is a deficient number, since it is larger than the sum of its proper divisors (19099965346970).

21004210333030 is a wasteful number, since it uses less digits than its factorization.

21004210333030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21004210333030 its reverse (3033301240012), we get a palindrome (24037511573042).

The spelling of 21004210333030 in words is "twenty-one trillion, four billion, two hundred ten million, three hundred thirty-three thousand, thirty".