200100101021121 has 128 divisors (see below), whose sum is σ = 332002938322944. Its totient is φ = 104622310195200.

The previous prime is 200100101021081. The next prime is 200100101021153. The reversal of 200100101021121 is 121120101001002.

It is not a de Polignac number, because 200100101021121 - 2⁶ = 200100101021057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200100101021097 and 200100101021106.

It is not an unprimeable number, because it can be changed into a prime (200100101021021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 443960940 + ... + 444411426.

It is an arithmetic number, because the mean of its divisors is an integer number (2593772955648).

Almost surely, 2^{200100101021121} is an apocalyptic number.

200100101021121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200100101021121 is a deficient number, since it is larger than the sum of its proper divisors (131902837301823).

200100101021121 is a wasteful number, since it uses less digits than its factorization.

200100101021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450839.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 200100101021121 its reverse (121120101001002), we get a palindrome (321220202022123).

The spelling of 200100101021121 in words is "two hundred trillion, one hundred billion, one hundred one million, twenty-one thousand, one hundred twenty-one".