212200219061521 has 2 divisors, whose sum is σ = 212200219061522. Its totient is φ = 212200219061520.

The previous prime is 212200219061489. The next prime is 212200219061527. The reversal of 212200219061521 is 125160912002212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202463416513296 + 9736802548225 = 14228964^2 + 3120385^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200219061521 - 2⁵ = 212200219061489 is a prime.

It is not a weakly prime, because it can be changed into another prime (212200219061527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100109530760 + 106100109530761.

It is an arithmetic number, because the mean of its divisors is an integer number (106100109530761).

Almost surely, 2^{212200219061521} is an apocalyptic number.

It is an amenable number.

212200219061521 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200219061521 is an equidigital number, since it uses as much as digits as its factorization.

212200219061521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 212200219061521 in words is "two hundred twelve trillion, two hundred billion, two hundred nineteen million, sixty-one thousand, five hundred twenty-one".