221010120021983 has 2 divisors, whose sum is σ = 221010120021984. Its totient is φ = 221010120021982.

The previous prime is 221010120021961. The next prime is 221010120022007. The reversal of 221010120021983 is 389120021010122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221010120021983 - 2⁴⁰ = 219910608394207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221010120020983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505060010991 + 110505060010992.

It is an arithmetic number, because the mean of its divisors is an integer number (110505060010992).

Almost surely, 2^{221010120021983} is an apocalyptic number.

221010120021983 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010120021983 is an equidigital number, since it uses as much as digits as its factorization.

221010120021983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 221010120021983 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty million, twenty-one thousand, nine hundred eighty-three".