212012120021113 has 2 divisors, whose sum is σ = 212012120021114. Its totient is φ = 212012120021112.

The previous prime is 212012120021089. The next prime is 212012120021123. The reversal of 212012120021113 is 311120021210212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197496842969449 + 14515277051664 = 14053357^2 + 3809892^2 .

It is a cyclic number.

It is not a de Polignac number, because 212012120021113 - 2³³ = 212003530086521 is a prime.

It is not a weakly prime, because it can be changed into another prime (212012120021123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006060010556 + 106006060010557.

It is an arithmetic number, because the mean of its divisors is an integer number (106006060010557).

Almost surely, 2^{212012120021113} is an apocalyptic number.

It is an amenable number.

212012120021113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012120021113 is an equidigital number, since it uses as much as digits as its factorization.

212012120021113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212012120021113 its reverse (311120021210212), we get a palindrome (523132141231325).

The spelling of 212012120021113 in words is "two hundred twelve trillion, twelve billion, one hundred twenty million, twenty-one thousand, one hundred thirteen".