10200121101 has 24 divisors (see below), whose sum is σ = 16083369120. Its totient is φ = 6442178832.

The previous prime is 10200121073. The next prime is 10200121133. The reversal of 10200121101 is 10112100201.

It is a happy number.

It is not a de Polignac number, because 10200121101 - 2¹⁷ = 10199990029 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200121171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1100010 + ... + 1109243.

It is an arithmetic number, because the mean of its divisors is an integer number (670140380).

Almost surely, 2^10200121101 is an apocalyptic number.

It is an amenable number.

10200121101 is a deficient number, since it is larger than the sum of its proper divisors (5883248019).

10200121101 is an equidigital number, since it uses as much as digits as its factorization.

10200121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209287 (or 2209275 counting only the distinct ones).

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

Adding to 10200121101 its reverse (10112100201), we get a palindrome (20312221302).

The spelling of 10200121101 in words is "ten billion, two hundred million, one hundred twenty-one thousand, one hundred one".