2102210120 has 64 divisors (see below), whose sum is σ = 5019408000. Its totient is φ = 790670848.

The previous prime is 2102210119. The next prime is 2102210129. The reversal of 2102210120 is 210122012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2102210129) 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, 34916 + ... + 73644.

It is an arithmetic number, because the mean of its divisors is an integer number (78428250).

Almost surely, 2^2102210120 is an apocalyptic number.

2102210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2509704000).

2102210120 is an abundant number, since it is smaller than the sum of its proper divisors (2917197880).

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

2102210120 is a wasteful number, since it uses less digits than its factorization.

2102210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38822 (or 38818 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2102210120 is about 45849.8649943487. The cubic root of 2102210120 is about 1281.0282509117.

Adding to 2102210120 its reverse (210122012), we get a palindrome (2312332132).

The spelling of 2102210120 in words is "two billion, one hundred two million, two hundred ten thousand, one hundred twenty".