201122220999979 has 2 divisors, whose sum is σ = 201122220999980. Its totient is φ = 201122220999978.

The previous prime is 201122220999929. The next prime is 201122221000037. The reversal of 201122220999979 is 979999022221102.

201122220999979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201122220999979 - 2⁷ = 201122220999851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201122220999979.

It is not a weakly prime, because it can be changed into another prime (201122220999919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561110499989 + 100561110499990.

It is an arithmetic number, because the mean of its divisors is an integer number (100561110499990).

Almost surely, 2^{201122220999979} is an apocalyptic number.

201122220999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122220999979 is an equidigital number, since it uses as much as digits as its factorization.

201122220999979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13226976, while the sum is 64.

The spelling of 201122220999979 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twenty million, nine hundred ninety-nine thousand, nine hundred seventy-nine".