200120110101 has 24 divisors (see below), whose sum is σ = 295252464000. Its totient is φ = 130557211776.

The previous prime is 200120110097. The next prime is 200120110139. The reversal of 200120110101 is 101011021002.

It is a happy number.

It is not a de Polignac number, because 200120110101 - 2² = 200120110097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120115101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3594525 + ... + 3649773.

It is an arithmetic number, because the mean of its divisors is an integer number (12302186000).

Almost surely, 2^200120110101 is an apocalyptic number.

It is an amenable number.

200120110101 is a deficient number, since it is larger than the sum of its proper divisors (95132353899).

200120110101 is a wasteful number, since it uses less digits than its factorization.

200120110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63865 (or 63862 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 200120110101 its reverse (101011021002), we get a palindrome (301131131103).

The spelling of 200120110101 in words is "two hundred billion, one hundred twenty million, one hundred ten thousand, one hundred one".