2225544321 has 64 divisors (see below), whose sum is σ = 4032645120. Its totient is φ = 1054218240.

The previous prime is 2225544319. The next prime is 2225544383. The reversal of 2225544321 is 1234455222.

It is not a de Polignac number, because 2225544321 - 2¹ = 2225544319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2225544121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244785 + ... + 253713.

It is an arithmetic number, because the mean of its divisors is an integer number (63010080).

Almost surely, 2^2225544321 is an apocalyptic number.

2225544321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2225544321 is a deficient number, since it is larger than the sum of its proper divisors (1807100799).

2225544321 is a wasteful number, since it uses less digits than its factorization.

2225544321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046.

The product of its digits is 19200, while the sum is 30.

The square root of 2225544321 is about 47175.6750985081. The cubic root of 2225544321 is about 1305.6058354652.

Adding to 2225544321 its reverse (1234455222), we get a palindrome (3459999543).

The spelling of 2225544321 in words is "two billion, two hundred twenty-five million, five hundred forty-four thousand, three hundred twenty-one".