2502104221 has 4 divisors (see below), whose sum is σ = 2502208444. Its totient is φ = 2502000000.

The previous prime is 2502104219. The next prime is 2502104261. The reversal of 2502104221 is 1224012052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1032915321 + 1469188900 = 32139^2 + 38330^2 .

It is a cyclic number.

It is not a de Polignac number, because 2502104221 - 2¹ = 2502104219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502104261) 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, 4141 + ... + 70861.

It is an arithmetic number, because the mean of its divisors is an integer number (625552111).

Almost surely, 2^2502104221 is an apocalyptic number.

It is an amenable number.

2502104221 is a deficient number, since it is larger than the sum of its proper divisors (104223).

2502104221 is an equidigital number, since it uses as much as digits as its factorization.

2502104221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104222.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2502104221 is about 50021.0377841164. The cubic root of 2502104221 is about 1357.5894838175.

Adding to 2502104221 its reverse (1224012052), we get a palindrome (3726116273).

The spelling of 2502104221 in words is "two billion, five hundred two million, one hundred four thousand, two hundred twenty-one".