20112110102 has 32 divisors (see below), whose sum is σ = 35788737600. Its totient is φ = 8293799808.

The previous prime is 20112110059. The next prime is 20112110107. The reversal of 20112110102 is 20101121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112110107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34424 + ... + 203492.

It is an arithmetic number, because the mean of its divisors is an integer number (1118398050).

Almost surely, 2^20112110102 is an apocalyptic number.

20112110102 is a deficient number, since it is larger than the sum of its proper divisors (15676627498).

20112110102 is a wasteful number, since it uses less digits than its factorization.

20112110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169400.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20112110102 its reverse (20101121102), we get a palindrome (40213231204).

The spelling of 20112110102 in words is "twenty billion, one hundred twelve million, one hundred ten thousand, one hundred two".