21332220321002 has 8 divisors (see below), whose sum is σ = 32000656489956. Its totient is φ = 10665334824352.

The previous prime is 21332220320947. The next prime is 21332220321011. The reversal of 21332220321002 is 20012302223312.

It can be written as a sum of positive squares in 2 ways, for example, as 20402575320241 + 929645000761 = 4516921^2 + 964181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387633683 + ... + 387688710.

Almost surely, 2^{21332220321002} is an apocalyptic number.

21332220321002 is a deficient number, since it is larger than the sum of its proper divisors (10668436168954).

21332220321002 is a wasteful number, since it uses less digits than its factorization.

21332220321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775336152.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21332220321002 its reverse (20012302223312), we get a palindrome (41344522544314).

The spelling of 21332220321002 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred twenty million, three hundred twenty-one thousand, two".