21120120222203 has 2 divisors, whose sum is σ = 21120120222204. Its totient is φ = 21120120222202.

The previous prime is 21120120222163. The next prime is 21120120222221. The reversal of 21120120222203 is 30222202102112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21120120222203 - 2¹² = 21120120218107 is a prime.

It is not a weakly prime, because it can be changed into another prime (21120120227203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560060111101 + 10560060111102.

It is an arithmetic number, because the mean of its divisors is an integer number (10560060111102).

Almost surely, 2^{21120120222203} is an apocalyptic number.

21120120222203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120120222203 is an equidigital number, since it uses as much as digits as its factorization.

21120120222203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21120120222203 its reverse (30222202102112), we get a palindrome (51342322324315).

The spelling of 21120120222203 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, two hundred twenty-two thousand, two hundred three".