2102112102121 has 8 divisors (see below), whose sum is σ = 2266719084000. Its totient is φ = 1942902070560.

The previous prime is 2102112102091. The next prime is 2102112102131. The reversal of 2102112102121 is 1212012112012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102112102121 - 2¹¹ = 2102112100073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102112102095 and 2102112102104.

It is not an unprimeable number, because it can be changed into a prime (2102112102131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349236771 + ... + 1349238328.

It is an arithmetic number, because the mean of its divisors is an integer number (283339885500).

Almost surely, 2^{2102112102121} is an apocalyptic number.

It is an amenable number.

2102112102121 is a deficient number, since it is larger than the sum of its proper divisors (164606981879).

2102112102121 is a wasteful number, since it uses less digits than its factorization.

2102112102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698475159.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2102112102121 its reverse (1212012112012), we get a palindrome (3314124214133).

The spelling of 2102112102121 in words is "two trillion, one hundred two billion, one hundred twelve million, one hundred two thousand, one hundred twenty-one".