212201219999957 has 2 divisors, whose sum is σ = 212201219999958. Its totient is φ = 212201219999956.

The previous prime is 212201219999939. The next prime is 212201220000031. The reversal of 212201219999957 is 759999912102212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174724221552241 + 37476998447716 = 13218329^2 + 6121846^2 .

It is a cyclic number.

It is not a de Polignac number, because 212201219999957 - 2⁶ = 212201219999893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201219999927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100609999978 + 106100609999979.

It is an arithmetic number, because the mean of its divisors is an integer number (106100609999979).

Almost surely, 2^{212201219999957} is an apocalyptic number.

It is an amenable number.

212201219999957 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201219999957 is an equidigital number, since it uses as much as digits as its factorization.

212201219999957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33067440, while the sum is 68.

The spelling of 212201219999957 in words is "two hundred twelve trillion, two hundred one billion, two hundred nineteen million, nine hundred ninety-nine thousand, nine hundred fifty-seven".