2102312212 has 96 divisors (see below), whose sum is σ = 4986051840. Its totient is φ = 748984320.

The previous prime is 2102312197. The next prime is 2102312243. The reversal of 2102312212 is 2122132012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434028 + ... + 438844.

It is an arithmetic number, because the mean of its divisors is an integer number (51938040).

Almost surely, 2^2102312212 is an apocalyptic number.

2102312212 is a gapful number since it is divisible by the number (22) 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 2102312212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493025920).

2102312212 is an abundant number, since it is smaller than the sum of its proper divisors (2883739628).

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

2102312212 is a wasteful number, since it uses less digits than its factorization.

2102312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961 (or 4959 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102312212 is about 45850.9783101735. The cubic root of 2102312212 is about 1281.0489879157.

Adding to 2102312212 its reverse (2122132012), we get a palindrome (4224444224).

The spelling of 2102312212 in words is "two billion, one hundred two million, three hundred twelve thousand, two hundred twelve".