200021220149 has 2 divisors, whose sum is σ = 200021220150. Its totient is φ = 200021220148.

The previous prime is 200021220073. The next prime is 200021220173. The reversal of 200021220149 is 941022120002.

200021220149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111325659025 + 88695561124 = 333655^2 + 297818^2 .

It is a cyclic number.

It is not a de Polignac number, because 200021220149 - 2²⁴ = 200004442933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021220199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010610074 + 100010610075.

It is an arithmetic number, because the mean of its divisors is an integer number (100010610075).

Almost surely, 2^200021220149 is an apocalyptic number.

It is an amenable number.

200021220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021220149 is an equidigital number, since it uses as much as digits as its factorization.

200021220149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 200021220149 in words is "two hundred billion, twenty-one million, two hundred twenty thousand, one hundred forty-nine".