2220502521 has 8 divisors (see below), whose sum is σ = 2966354784. Its totient is φ = 1477492640.

The previous prime is 2220502489. The next prime is 2220502561. The reversal of 2220502521 is 1252050222.

2220502521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220502521 - 2⁵ = 2220502489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220502561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708771 + ... + 711896.

It is an arithmetic number, because the mean of its divisors is an integer number (370794348).

Almost surely, 2^2220502521 is an apocalyptic number.

It is an amenable number.

2220502521 is a deficient number, since it is larger than the sum of its proper divisors (745852263).

2220502521 is a wasteful number, since it uses less digits than its factorization.

2220502521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421191.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2220502521 is about 47122.2083629365. The cubic root of 2220502521 is about 1304.6191733860.

Adding to 2220502521 its reverse (1252050222), we get a palindrome (3472552743).

The spelling of 2220502521 in words is "two billion, two hundred twenty million, five hundred two thousand, five hundred twenty-one".