2214221212 has 72 divisors (see below), whose sum is σ = 4601076480. Its totient is φ = 929466720.

The previous prime is 2214221161. The next prime is 2214221237. The reversal of 2214221212 is 2121224122.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2214221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2130589 + ... + 2131627.

It is an arithmetic number, because the mean of its divisors is an integer number (63903840).

Almost surely, 2^2214221212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2214221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300538240).

2214221212 is an abundant number, since it is smaller than the sum of its proper divisors (2386855268).

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

2214221212 is a wasteful number, since it uses less digits than its factorization.

2214221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271 (or 1262 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 2214221212 is about 47055.5120256915. The cubic root of 2214221212 is about 1303.3878522090.

Adding to 2214221212 its reverse (2121224122), we get a palindrome (4335445334).

The spelling of 2214221212 in words is "two billion, two hundred fourteen million, two hundred twenty-one thousand, two hundred twelve".