2121002113102 has 8 divisors (see below), whose sum is σ = 3214302171696. Its totient is φ = 1049568055872.

The previous prime is 2121002113099. The next prime is 2121002113103. The reversal of 2121002113102 is 2013112001212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121002113103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466500098 + ... + 5466500485.

It is an arithmetic number, because the mean of its divisors is an integer number (401787771462).

Almost surely, 2^{2121002113102} is an apocalyptic number.

2121002113102 is a deficient number, since it is larger than the sum of its proper divisors (1093300058594).

2121002113102 is a wasteful number, since it uses less digits than its factorization.

2121002113102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933000682.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2121002113102 its reverse (2013112001212), we get a palindrome (4134114114314).

The spelling of 2121002113102 in words is "two trillion, one hundred twenty-one billion, two million, one hundred thirteen thousand, one hundred two".