200123220101 has 6 divisors (see below), whose sum is σ = 232796398950. Its totient is φ = 171534188616.

The previous prime is 200123220071. The next prime is 200123220119. The reversal of 200123220101 is 101022321002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 199639176100 + 484044001 = 446810^2 + 22001^2 .

It is not a de Polignac number, because 200123220101 - 2¹⁴ = 200123203717 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 (200123220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2042073626 + ... + 2042073723.

It is an arithmetic number, because the mean of its divisors is an integer number (38799399825).

Almost surely, 2^200123220101 is an apocalyptic number.

It is an amenable number.

200123220101 is a deficient number, since it is larger than the sum of its proper divisors (32673178849).

200123220101 is an equidigital number, since it uses as much as digits as its factorization.

200123220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084147363 (or 4084147356 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 200123220101 its reverse (101022321002), we get a palindrome (301145541103).

The spelling of 200123220101 in words is "two hundred billion, one hundred twenty-three million, two hundred twenty thousand, one hundred one".