2100121102223 has 2 divisors, whose sum is σ = 2100121102224. Its totient is φ = 2100121102222.

The previous prime is 2100121102199. The next prime is 2100121102237. The reversal of 2100121102223 is 3222011210012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100121102223 - 2³⁴ = 2082941233039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100121102523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060551111 + 1050060551112.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060551112).

Almost surely, 2^{2100121102223} is an apocalyptic number.

2100121102223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100121102223 is an equidigital number, since it uses as much as digits as its factorization.

2100121102223 is an evil number, because the sum of its binary digits is even.

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

Adding to 2100121102223 its reverse (3222011210012), we get a palindrome (5322132312235).

The spelling of 2100121102223 in words is "two trillion, one hundred billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-three".