211421212043 has 2 divisors, whose sum is σ = 211421212044. Its totient is φ = 211421212042.

The previous prime is 211421212033. The next prime is 211421212087. The reversal of 211421212043 is 340212124112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211421212043 - 2²⁰ = 211420163467 is a prime.

It is not a weakly prime, because it can be changed into another prime (211421212033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710606021 + 105710606022.

It is an arithmetic number, because the mean of its divisors is an integer number (105710606022).

Almost surely, 2^211421212043 is an apocalyptic number.

211421212043 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421212043 is an equidigital number, since it uses as much as digits as its factorization.

211421212043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 211421212043 its reverse (340212124112), we get a palindrome (551633336155).

The spelling of 211421212043 in words is "two hundred eleven billion, four hundred twenty-one million, two hundred twelve thousand, forty-three".