212021221012099 has 2 divisors, whose sum is σ = 212021221012100. Its totient is φ = 212021221012098.

The previous prime is 212021221012019. The next prime is 212021221012151. The reversal of 212021221012099 is 990210122120212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021221012099 - 2⁴⁷ = 71283732656771 is a prime.

It is a super-2 number, since 2×212021221012099² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212021221012019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010610506049 + 106010610506050.

It is an arithmetic number, because the mean of its divisors is an integer number (106010610506050).

Almost surely, 2^{212021221012099} is an apocalyptic number.

212021221012099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021221012099 is an equidigital number, since it uses as much as digits as its factorization.

212021221012099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 212021221012099 in words is "two hundred twelve trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, ninety-nine".