2109101910212 has 12 divisors (see below), whose sum is σ = 4026467283216. Its totient is φ = 958682686440.

The previous prime is 2109101910203. The next prime is 2109101910217. The reversal of 2109101910212 is 2120191019012.

It is not an unprimeable number, because it can be changed into a prime (2109101910217) 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, 23967067118 + ... + 23967067205.

It is an arithmetic number, because the mean of its divisors is an integer number (335538940268).

Almost surely, 2^{2109101910212} is an apocalyptic number.

2109101910212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2109101910212 is a deficient number, since it is larger than the sum of its proper divisors (1917365373004).

2109101910212 is a wasteful number, since it uses less digits than its factorization.

2109101910212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47934134338 (or 47934134336 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

Adding to 2109101910212 its reverse (2120191019012), we get a palindrome (4229292929224).

The spelling of 2109101910212 in words is "two trillion, one hundred nine billion, one hundred one million, nine hundred ten thousand, two hundred twelve".