2221712752 has 20 divisors (see below), whose sum is σ = 4919507056. Its totient is φ = 952162560.

The previous prime is 2221712749. The next prime is 2221712771. The reversal of 2221712752 is 2572171222.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9918249 + ... + 9918472.

Almost surely, 2^2221712752 is an apocalyptic number.

It is an amenable number.

2221712752 is an abundant number, since it is smaller than the sum of its proper divisors (2697794304).

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

2221712752 is a wasteful number, since it uses less digits than its factorization.

2221712752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19836736 (or 19836730 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 2221712752 is about 47135.0480216155. The cubic root of 2221712752 is about 1304.8561473432.

Adding to 2221712752 its reverse (2572171222), we get a palindrome (4793883974).

It can be divided in two parts, 22217 and 12752, that added together give a square (34969 = 187²).

The spelling of 2221712752 in words is "two billion, two hundred twenty-one million, seven hundred twelve thousand, seven hundred fifty-two".