2121202221163 has 2 divisors, whose sum is σ = 2121202221164. Its totient is φ = 2121202221162.

The previous prime is 2121202221113. The next prime is 2121202221169. The reversal of 2121202221163 is 3611222021212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121202221163 - 2³³ = 2112612286571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121202221169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060601110581 + 1060601110582.

It is an arithmetic number, because the mean of its divisors is an integer number (1060601110582).

Almost surely, 2^{2121202221163} is an apocalyptic number.

2121202221163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121202221163 is an equidigital number, since it uses as much as digits as its factorization.

2121202221163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 2121202221163 its reverse (3611222021212), we get a palindrome (5732424242375).

The spelling of 2121202221163 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-one thousand, one hundred sixty-three".