2220544772 has 12 divisors (see below), whose sum is σ = 3914318940. Its totient is φ = 1102167936.

The previous prime is 2220544771. The next prime is 2220544783. The reversal of 2220544772 is 2774450222.

It can be written as a sum of positive squares in 2 ways, for example, as 1069028416 + 1151516356 = 32696^2 + 33934^2 .

It is a super-3 number, since 3×2220544772³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220544771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025497 + ... + 2026592.

It is an arithmetic number, because the mean of its divisors is an integer number (326193245).

Almost surely, 2^2220544772 is an apocalyptic number.

It is an amenable number.

2220544772 is a deficient number, since it is larger than the sum of its proper divisors (1693774168).

2220544772 is a wasteful number, since it uses less digits than its factorization.

2220544772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052230 (or 4052228 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 35.

The square root of 2220544772 is about 47122.6566738337. The cubic root of 2220544772 is about 1304.6274479567.

Adding to 2220544772 its reverse (2774450222), we get a palindrome (4994994994).

The spelling of 2220544772 in words is "two billion, two hundred twenty million, five hundred forty-four thousand, seven hundred seventy-two".