201000222020101 has 6 divisors (see below), whose sum is σ = 233816584798950. Its totient is φ = 172285904588616.

The previous prime is 201000222020077. The next prime is 201000222020177. The reversal of 201000222020101 is 101020222000102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 172365415697601 + 28634806322500 = 13128801^2 + 5351150^2 .

It is not a de Polignac number, because 201000222020101 - 2⁵ = 201000222020069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000222020501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2051022673626 + ... + 2051022673723.

It is an arithmetic number, because the mean of its divisors is an integer number (38969430799825).

Almost surely, 2^{201000222020101} is an apocalyptic number.

It is an amenable number.

201000222020101 is a deficient number, since it is larger than the sum of its proper divisors (32816362778849).

201000222020101 is an equidigital number, since it uses as much as digits as its factorization.

201000222020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102045347363 (or 4102045347356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201000222020101 its reverse (101020222000102), we get a palindrome (302020444020203).

The spelling of 201000222020101 in words is "two hundred one trillion, two hundred twenty-two million, twenty thousand, one hundred one".