102201200121 has 16 divisors (see below), whose sum is σ = 138254537664. Its totient is φ = 67147597824.

The previous prime is 102201200119. The next prime is 102201200141. The reversal of 102201200121 is 121002102201.

It is not a de Polignac number, because 102201200121 - 2¹ = 102201200119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102201200097 and 102201200106.

It is not an unprimeable number, because it can be changed into a prime (102201200111) 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 15 ways as a sum of consecutive naturals, for example, 762876 + ... + 886781.

It is an arithmetic number, because the mean of its divisors is an integer number (8640908604).

Almost surely, 2^102201200121 is an apocalyptic number.

It is an amenable number.

102201200121 is a deficient number, since it is larger than the sum of its proper divisors (36053337543).

102201200121 is a wasteful number, since it uses less digits than its factorization.

102201200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649960.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102201200121 its reverse (121002102201), we get a palindrome (223203302322).

The spelling of 102201200121 in words is "one hundred two billion, two hundred one million, two hundred thousand, one hundred twenty-one".