2223221544 has 48 divisors (see below), whose sum is σ = 6215464320. Its totient is φ = 717167520.

The previous prime is 2223221543. The next prime is 2223221549. The reversal of 2223221544 is 4451223222.

It is not an unprimeable number, because it can be changed into a prime (2223221543) 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, 495802 + ... + 500265.

It is an arithmetic number, because the mean of its divisors is an integer number (129488840).

Almost surely, 2^2223221544 is an apocalyptic number.

2223221544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2223221544 is an abundant number, since it is smaller than the sum of its proper divisors (3992242776).

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

2223221544 is a wasteful number, since it uses less digits than its factorization.

2223221544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996110 (or 996103 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 2223221544 is about 47151.0502958312. The cubic root of 2223221544 is about 1305.1514616998.

Adding to 2223221544 its reverse (4451223222), we get a palindrome (6674444766).

The spelling of 2223221544 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, five hundred forty-four".