212142221143 has 2 divisors, whose sum is σ = 212142221144. Its totient is φ = 212142221142.

The previous prime is 212142221129. The next prime is 212142221177. The reversal of 212142221143 is 341122241212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212142221143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212142221183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106071110571 + 106071110572.

It is an arithmetic number, because the mean of its divisors is an integer number (106071110572).

Almost surely, 2^212142221143 is an apocalyptic number.

212142221143 is a deficient number, since it is larger than the sum of its proper divisors (1).

212142221143 is an equidigital number, since it uses as much as digits as its factorization.

212142221143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 25.

Adding to 212142221143 its reverse (341122241212), we get a palindrome (553264462355).

The spelling of 212142221143 in words is "two hundred twelve billion, one hundred forty-two million, two hundred twenty-one thousand, one hundred forty-three".