2120002121105 has 16 divisors (see below), whose sum is σ = 2783227608000. Its totient is φ = 1537401888960.

The previous prime is 2120002121099. The next prime is 2120002121117. The reversal of 2120002121105 is 5011212000212.

It is not a de Polignac number, because 2120002121105 - 2⁴ = 2120002121089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55203575 + ... + 55241964.

It is an arithmetic number, because the mean of its divisors is an integer number (173951725500).

Almost surely, 2^{2120002121105} is an apocalyptic number.

It is an amenable number.

2120002121105 is a deficient number, since it is larger than the sum of its proper divisors (663225486895).

2120002121105 is a wasteful number, since it uses less digits than its factorization.

2120002121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110445904.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 2120002121105 its reverse (5011212000212), we get a palindrome (7131214121317).

The spelling of 2120002121105 in words is "two trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, one hundred five".