2112210111102 has 48 divisors (see below), whose sum is σ = 5292130837392. Its totient is φ = 557066401920.

The previous prime is 2112210111029. The next prime is 2112210111139. The reversal of 2112210111102 is 2011110122112.

It is a happy number.

It is a super-2 number, since 2×2112210111102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276318799 + ... + 276326442.

It is an arithmetic number, because the mean of its divisors is an integer number (110252725779).

Almost surely, 2^{2112210111102} is an apocalyptic number.

2112210111102 is an abundant number, since it is smaller than the sum of its proper divisors (3179920726290).

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

2112210111102 is a wasteful number, since it uses less digits than its factorization.

2112210111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552645273 (or 552645266 counting only the distinct ones).

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

Adding to 2112210111102 its reverse (2011110122112), we get a palindrome (4123320233214).

The spelling of 2112210111102 in words is "two trillion, one hundred twelve billion, two hundred ten million, one hundred eleven thousand, one hundred two".