2221450244 has 36 divisors (see below), whose sum is σ = 4215125376. Its totient is φ = 1023935328.

The previous prime is 2221450243. The next prime is 2221450247. The reversal of 2221450244 is 4420541222.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (2221450243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 662837 + ... + 666179.

It is an arithmetic number, because the mean of its divisors is an integer number (117086816).

Almost surely, 2^2221450244 is an apocalyptic number.

It is an amenable number.

2221450244 is a deficient number, since it is larger than the sum of its proper divisors (1993675132).

2221450244 is a wasteful number, since it uses less digits than its factorization.

2221450244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4341 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2221450244 is about 47132.2633023283. The cubic root of 2221450244 is about 1304.8047532601.

Adding to 2221450244 its reverse (4420541222), we get a palindrome (6641991466).

The spelling of 2221450244 in words is "two billion, two hundred twenty-one million, four hundred fifty thousand, two hundred forty-four".