10012102121 has 16 divisors (see below), whose sum is σ = 11523558144. Its totient is φ = 8521153344.

The previous prime is 10012102109. The next prime is 10012102127. The reversal of 10012102121 is 12120121001.

It is a cyclic number.

It is not a de Polignac number, because 10012102121 - 2²⁶ = 9944993257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10012102127) 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, 559316 + ... + 576938.

It is an arithmetic number, because the mean of its divisors is an integer number (720222384).

Almost surely, 2^10012102121 is an apocalyptic number.

It is an amenable number.

10012102121 is a deficient number, since it is larger than the sum of its proper divisors (1511456023).

10012102121 is a wasteful number, since it uses less digits than its factorization.

10012102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012102121 its reverse (12120121001), we get a palindrome (22132223122).

The spelling of 10012102121 in words is "ten billion, twelve million, one hundred two thousand, one hundred twenty-one".