21330012221002 has 16 divisors (see below), whose sum is σ = 33679074895200. Its totient is φ = 10103657530320.

The previous prime is 21330012220987. The next prime is 21330012221017. The reversal of 21330012221002 is 20012221003312.

It is an interprime number because it is at equal distance from previous prime (21330012220987) and next prime (21330012221017).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14489649 + ... + 15893707.

It is an arithmetic number, because the mean of its divisors is an integer number (2104942180950).

Almost surely, 2^{21330012221002} is an apocalyptic number.

21330012221002 is a deficient number, since it is larger than the sum of its proper divisors (12349062674198).

21330012221002 is a wasteful number, since it uses less digits than its factorization.

21330012221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803861.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21330012221002 its reverse (20012221003312), we get a palindrome (41342233224314).

The spelling of 21330012221002 in words is "twenty-one trillion, three hundred thirty billion, twelve million, two hundred twenty-one thousand, two".