2102000202121 has 8 divisors (see below), whose sum is σ = 2230293726720. Its totient is φ = 1974222950208.

The previous prime is 2102000202073. The next prime is 2102000202149. The reversal of 2102000202121 is 1212020002012.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102000202121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102000202721) 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, 129059781 + ... + 129076066.

It is an arithmetic number, because the mean of its divisors is an integer number (278786715840).

Almost surely, 2^{2102000202121} is an apocalyptic number.

It is an amenable number.

2102000202121 is a deficient number, since it is larger than the sum of its proper divisors (128293524599).

2102000202121 is a wasteful number, since it uses less digits than its factorization.

2102000202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258136343.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2102000202121 its reverse (1212020002012), we get a palindrome (3314020204133).

The spelling of 2102000202121 in words is "two trillion, one hundred two billion, two hundred two thousand, one hundred twenty-one".