2101111122102 has 32 divisors (see below), whose sum is σ = 4206689272800. Its totient is φ = 699626019840.

The previous prime is 2101111122037. The next prime is 2101111122107. The reversal of 2101111122102 is 2012211111012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101111122107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109008738 + ... + 109028010.

It is an arithmetic number, because the mean of its divisors is an integer number (131459039775).

Almost surely, 2^{2101111122102} is an apocalyptic number.

2101111122102 is an abundant number, since it is smaller than the sum of its proper divisors (2105578150698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101111122102 is a wasteful number, since it uses less digits than its factorization.

2101111122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37648.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2101111122102 its reverse (2012211111012), we get a palindrome (4113322233114).

The spelling of 2101111122102 in words is "two trillion, one hundred one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred two".