2120101012105 has 32 divisors (see below), whose sum is σ = 2714334255360. Its totient is φ = 1585132830720.

The previous prime is 2120101012093. The next prime is 2120101012129. The reversal of 2120101012105 is 5012101010212.

It is not a de Polignac number, because 2120101012105 - 2¹³ = 2120101003913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2495977 + ... + 3235753.

It is an arithmetic number, because the mean of its divisors is an integer number (84822945480).

Almost surely, 2^{2120101012105} is an apocalyptic number.

It is an amenable number.

2120101012105 is a deficient number, since it is larger than the sum of its proper divisors (594233243255).

2120101012105 is a wasteful number, since it uses less digits than its factorization.

2120101012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740209.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 2120101012105 its reverse (5012101010212), we get a palindrome (7132202022317).

The spelling of 2120101012105 in words is "two trillion, one hundred twenty billion, one hundred one million, twelve thousand, one hundred five".