2102120211121 has 8 divisors (see below), whose sum is σ = 2479920617984. Its totient is φ = 1743694184160.

The previous prime is 2102120211089. The next prime is 2102120211161. The reversal of 2102120211121 is 1211120212012.

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 2102120211121 - 2⁵ = 2102120211089 is a prime.

It is a super-2 number, since 2×2102120211121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102120211095 and 2102120211104.

It is not an unprimeable number, because it can be changed into a prime (2102120211161) 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, 4843594740 + ... + 4843595173.

It is an arithmetic number, because the mean of its divisors is an integer number (309990077248).

Almost surely, 2^{2102120211121} is an apocalyptic number.

It is an amenable number.

2102120211121 is a deficient number, since it is larger than the sum of its proper divisors (377800406863).

2102120211121 is an equidigital number, since it uses as much as digits as its factorization.

2102120211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9687189951.

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

Adding to 2102120211121 its reverse (1211120212012), we get a palindrome (3313240423133).

The spelling of 2102120211121 in words is "two trillion, one hundred two billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".