2121010222103 has 2 divisors, whose sum is σ = 2121010222104. Its totient is φ = 2121010222102.

The previous prime is 2121010222087. The next prime is 2121010222153. The reversal of 2121010222103 is 3012220101212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121010222103 - 2⁴ = 2121010222087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121010222153) 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, 1060505111051 + 1060505111052.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505111052).

Almost surely, 2^{2121010222103} is an apocalyptic number.

2121010222103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121010222103 is an equidigital number, since it uses as much as digits as its factorization.

2121010222103 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 2121010222103 its reverse (3012220101212), we get a palindrome (5133230323315).

The spelling of 2121010222103 in words is "two trillion, one hundred twenty-one billion, ten million, two hundred twenty-two thousand, one hundred three".