212021123183 has 2 divisors, whose sum is σ = 212021123184. Its totient is φ = 212021123182.

The previous prime is 212021123087. The next prime is 212021123219. The reversal of 212021123183 is 381321120212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021123183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021123383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010561591 + 106010561592.

It is an arithmetic number, because the mean of its divisors is an integer number (106010561592).

Almost surely, 2^212021123183 is an apocalyptic number.

212021123183 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021123183 is an equidigital number, since it uses as much as digits as its factorization.

212021123183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 212021123183 its reverse (381321120212), we get a palindrome (593342243395).

The spelling of 212021123183 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-three thousand, one hundred eighty-three".