2121211102243 has 2 divisors, whose sum is σ = 2121211102244. Its totient is φ = 2121211102242.

The previous prime is 2121211102177. The next prime is 2121211102277. The reversal of 2121211102243 is 3422011121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121211102243 - 2¹⁷ = 2121210971171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121211106243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060605551121 + 1060605551122.

It is an arithmetic number, because the mean of its divisors is an integer number (1060605551122).

Almost surely, 2^{2121211102243} is an apocalyptic number.

2121211102243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121211102243 is an equidigital number, since it uses as much as digits as its factorization.

2121211102243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 2121211102243 its reverse (3422011121212), we get a palindrome (5543222223455).

The spelling of 2121211102243 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, two hundred forty-three".