2102210111112 has 64 divisors (see below), whose sum is σ = 5370484654080. Its totient is φ = 685572724032.

The previous prime is 2102210111101. The next prime is 2102210111137. The reversal of 2102210111112 is 2111110122012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102210111091 and 2102210111100.

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, 4917768 + ... + 5328119.

It is an arithmetic number, because the mean of its divisors is an integer number (83913822720).

Almost surely, 2^{2102210111112} is an apocalyptic number.

It is an amenable number.

2102210111112 is an abundant number, since it is smaller than the sum of its proper divisors (3268274542968).

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

2102210111112 is a wasteful number, since it uses less digits than its factorization.

2102210111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10246082 (or 10246078 counting only the distinct ones).

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

Adding to 2102210111112 its reverse (2111110122012), we get a palindrome (4213320233124).

The spelling of 2102210111112 in words is "two trillion, one hundred two billion, two hundred ten million, one hundred eleven thousand, one hundred twelve".