2213021244 has 48 divisors (see below), whose sum is σ = 5962251008. Its totient is φ = 625771008.

The previous prime is 2213021243. The next prime is 2213021269. The reversal of 2213021244 is 4421203122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2213021244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213021243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127654 + ... + 143949.

Almost surely, 2^2213021244 is an apocalyptic number.

It is an amenable number.

2213021244 is an abundant number, since it is smaller than the sum of its proper divisors (3749229764).

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

2213021244 is a wasteful number, since it uses less digits than its factorization.

2213021244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271714 (or 271712 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2213021244 is about 47042.7597404744. The cubic root of 2213021244 is about 1303.1523583741.

Adding to 2213021244 its reverse (4421203122), we get a palindrome (6634224366).

The spelling of 2213021244 in words is "two billion, two hundred thirteen million, twenty-one thousand, two hundred forty-four".