2120102002121 has 8 divisors (see below), whose sum is σ = 2139947377344. Its totient is φ = 2100257207440.

The previous prime is 2120102002103. The next prime is 2120102002129. The reversal of 2120102002121 is 1212002010212.

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 2120102002121 - 2³⁴ = 2102922132937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120102002096 and 2120102002105.

It is not an unprimeable number, because it can be changed into a prime (2120102002129) 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, 11673791 + ... + 11854011.

It is an arithmetic number, because the mean of its divisors is an integer number (267493422168).

Almost surely, 2^{2120102002121} is an apocalyptic number.

It is an amenable number.

2120102002121 is a deficient number, since it is larger than the sum of its proper divisors (19845375223).

2120102002121 is a wasteful number, since it uses less digits than its factorization.

2120102002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290271.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2120102002121 its reverse (1212002010212), we get a palindrome (3332104012333).

The spelling of 2120102002121 in words is "two trillion, one hundred twenty billion, one hundred two million, two thousand, one hundred twenty-one".