21021213003302 has 16 divisors (see below), whose sum is σ = 31840936138752. Its totient is φ = 10407586742280.

The previous prime is 21021213003293. The next prime is 21021213003313. The reversal of 21021213003302 is 20330031212012.

It is a super-2 number, since 2×21021213003302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 2572724 + ... + 6975767.

It is an arithmetic number, because the mean of its divisors is an integer number (1990058508672).

Almost surely, 2^{21021213003302} is an apocalyptic number.

21021213003302 is a deficient number, since it is larger than the sum of its proper divisors (10819723135450).

21021213003302 is a wasteful number, since it uses less digits than its factorization.

21021213003302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559283.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21021213003302 its reverse (20330031212012), we get a palindrome (41351244215314).

The spelling of 21021213003302 in words is "twenty-one trillion, twenty-one billion, two hundred thirteen million, three thousand, three hundred two".