21221301330322 has 16 divisors (see below), whose sum is σ = 31964649437952. Its totient is φ = 10566419878080.

The previous prime is 21221301330319. The next prime is 21221301330377. The reversal of 21221301330322 is 22303310312212.

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, 26434083 + ... + 27225049.

It is an arithmetic number, because the mean of its divisors is an integer number (1997790589872).

Almost surely, 2^{21221301330322} is an apocalyptic number.

21221301330322 is a deficient number, since it is larger than the sum of its proper divisors (10743348107630).

21221301330322 is a wasteful number, since it uses less digits than its factorization.

21221301330322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846873.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21221301330322 its reverse (22303310312212), we get a palindrome (43524611642534).

The spelling of 21221301330322 in words is "twenty-one trillion, two hundred twenty-one billion, three hundred one million, three hundred thirty thousand, three hundred twenty-two".