102011200120121 has 16 divisors (see below), whose sum is σ = 105721486338240. Its totient is φ = 98313768544320.

The previous prime is 102011200120043. The next prime is 102011200120129. The reversal of 102011200120121 is 121021002110201.

It is a cyclic number.

It is not a de Polignac number, because 102011200120121 - 2²⁶ = 102011133011257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011200120096 and 102011200120105.

It is not an unprimeable number, because it can be changed into a prime (102011200120129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686282810 + ... + 686431436.

It is an arithmetic number, because the mean of its divisors is an integer number (6607592896140).

Almost surely, 2^{102011200120121} is an apocalyptic number.

It is an amenable number.

102011200120121 is a deficient number, since it is larger than the sum of its proper divisors (3710286218119).

102011200120121 is a wasteful number, since it uses less digits than its factorization.

102011200120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191704.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102011200120121 its reverse (121021002110201), we get a palindrome (223032202230322).

The spelling of 102011200120121 in words is "one hundred two trillion, eleven billion, two hundred million, one hundred twenty thousand, one hundred twenty-one".