21102202121003 has 2 divisors, whose sum is σ = 21102202121004. Its totient is φ = 21102202121002.

The previous prime is 21102202120949. The next prime is 21102202121047. The reversal of 21102202121003 is 30012120220112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21102202121003 is a prime.

It is not a weakly prime, because it can be changed into another prime (21102202121303) by changing a digit.

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 as a sum of consecutive naturals, namely, 10551101060501 + 10551101060502.

It is an arithmetic number, because the mean of its divisors is an integer number (10551101060502).

Almost surely, 2^{21102202121003} is an apocalyptic number.

21102202121003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102202121003 is an equidigital number, since it uses as much as digits as its factorization.

21102202121003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21102202121003 its reverse (30012120220112), we get a palindrome (51114322341115).

The spelling of 21102202121003 in words is "twenty-one trillion, one hundred two billion, two hundred two million, one hundred twenty-one thousand, three".