2102120220112 has 20 divisors (see below), whose sum is σ = 4443117738336. Its totient is φ = 955509190880.

The previous prime is 2102120220091. The next prime is 2102120220119. The reversal of 2102120220112 is 2110220212012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102120220119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971932268 + ... + 5971932619.

Almost surely, 2^{2102120220112} is an apocalyptic number.

2102120220112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2102120220112 is an abundant number, since it is smaller than the sum of its proper divisors (2340997518224).

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

2102120220112 is a wasteful number, since it uses less digits than its factorization.

2102120220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11943864906 (or 11943864900 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2102120220112 its reverse (2110220212012), we get a palindrome (4212340432124).

It can be divided in two parts, 2102120 and 220112, that added together give a palindrome (2322232).

The spelling of 2102120220112 in words is "two trillion, one hundred two billion, one hundred twenty million, two hundred twenty thousand, one hundred twelve".