2221313532 has 12 divisors (see below), whose sum is σ = 5183064936. Its totient is φ = 740437840.

The previous prime is 2221313519. The next prime is 2221313533. The reversal of 2221313532 is 2353131222.

It is a happy number.

2221313532 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221313533) 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, 92554719 + ... + 92554742.

It is an arithmetic number, because the mean of its divisors is an integer number (431922078).

Almost surely, 2^2221313532 is an apocalyptic number.

It is an amenable number.

2221313532 is an abundant number, since it is smaller than the sum of its proper divisors (2961751404).

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

2221313532 is a wasteful number, since it uses less digits than its factorization.

2221313532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185109468 (or 185109466 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 2221313532 is about 47130.8129783478. The cubic root of 2221313532 is about 1304.7779860424. Note that the first 3 decimals are identical.

Adding to 2221313532 its reverse (2353131222), we get a palindrome (4574444754).

The spelling of 2221313532 in words is "two billion, two hundred twenty-one million, three hundred thirteen thousand, five hundred thirty-two".