212250122543 has 2 divisors, whose sum is σ = 212250122544. Its totient is φ = 212250122542.

The previous prime is 212250122459. The next prime is 212250122549. The reversal of 212250122543 is 345221052212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212250122543 - 2²⁸ = 211981687087 is a prime.

It is a super-2 number, since 2×212250122543² (a number of 23 digits) contains 22 as substring.

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 (212250122549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106125061271 + 106125061272.

It is an arithmetic number, because the mean of its divisors is an integer number (106125061272).

Almost surely, 2^212250122543 is an apocalyptic number.

212250122543 is a deficient number, since it is larger than the sum of its proper divisors (1).

212250122543 is an equidigital number, since it uses as much as digits as its factorization.

212250122543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 212250122543 its reverse (345221052212), we get a palindrome (557471174755).

The spelling of 212250122543 in words is "two hundred twelve billion, two hundred fifty million, one hundred twenty-two thousand, five hundred forty-three".