2502221 has 8 divisors (see below), whose sum is σ = 2564544. Its totient is φ = 2440800.

The previous prime is 2502211. The next prime is 2502229. The reversal of 2502221 is 1222052.

2502221 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 2502221 - 2¹⁰ = 2501197 is a prime.

It is a super-2 number, since 2×2502221² = 12522219865682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2502196 and 2502205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10910 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (320568).

2^2502221 is an apocalyptic number.

It is an amenable number.

2502221 is a deficient number, since it is larger than the sum of its proper divisors (62323).

2502221 is a wasteful number, since it uses less digits than its factorization.

2502221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2502221 is about 1581.8410160316. The cubic root of 2502221 is about 135.7610604104.

Adding to 2502221 its reverse (1222052), we get a palindrome (3724273).

The spelling of 2502221 in words is "two million, five hundred two thousand, two hundred twenty-one".