2211212130 has 64 divisors (see below), whose sum is σ = 5516235648. Its totient is φ = 566784000.

The previous prime is 2211212071. The next prime is 2211212141. The reversal of 2211212130 is 312121122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon 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, 80130 + ... + 104130.

It is an arithmetic number, because the mean of its divisors is an integer number (86191182).

Almost surely, 2^2211212130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211212130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2758117824).

2211212130 is an abundant number, since it is smaller than the sum of its proper divisors (3305023518).

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

2211212130 is a wasteful number, since it uses less digits than its factorization.

2211212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24131.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2211212130 is about 47023.5274091598. The cubic root of 2211212130 is about 1302.7971586074.

Adding to 2211212130 its reverse (312121122), we get a palindrome (2523333252).

The spelling of 2211212130 in words is "two billion, two hundred eleven million, two hundred twelve thousand, one hundred thirty".