2111102120105 has 16 divisors (see below), whose sum is σ = 2763808979904. Its totient is φ = 1535244559680.

The previous prime is 2111102120093. The next prime is 2111102120159. The reversal of 2111102120105 is 5010212011112.

It is not a de Polignac number, because 2111102120105 - 2⁸ = 2111102119849 is a prime.

It is a super-2 number, since 2×2111102120105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 443687 + ... + 2102156.

It is an arithmetic number, because the mean of its divisors is an integer number (172738061244).

Almost surely, 2^{2111102120105} is an apocalyptic number.

It is an amenable number.

2111102120105 is a deficient number, since it is larger than the sum of its proper divisors (652706859799).

2111102120105 is a wasteful number, since it uses less digits than its factorization.

2111102120105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560936.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 2111102120105 its reverse (5010212011112), we get a palindrome (7121314131217).

The spelling of 2111102120105 in words is "two trillion, one hundred eleven billion, one hundred two million, one hundred twenty thousand, one hundred five".