21020122202003 has 2 divisors, whose sum is σ = 21020122202004. Its totient is φ = 21020122202002.

The previous prime is 21020122201927. The next prime is 21020122202029. The reversal of 21020122202003 is 30020222102012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020122202003 - 2¹⁶ = 21020122136467 is a prime.

It is not a weakly prime, because it can be changed into another prime (21020122202063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510061101001 + 10510061101002.

It is an arithmetic number, because the mean of its divisors is an integer number (10510061101002).

Almost surely, 2^{21020122202003} is an apocalyptic number.

21020122202003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020122202003 is an equidigital number, since it uses as much as digits as its factorization.

21020122202003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21020122202003 its reverse (30020222102012), we get a palindrome (51040344304015).

Subtracting 21020122202003 from its reverse (30020222102012), we obtain a palindrome (9000099900009).

The spelling of 21020122202003 in words is "twenty-one trillion, twenty billion, one hundred twenty-two million, two hundred two thousand, three".