5242102221 has 4 divisors (see below), whose sum is σ = 6989469632. Its totient is φ = 3494734812.

The previous prime is 5242102211. The next prime is 5242102231. The reversal of 5242102221 is 1222012425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (5242102211) and next prime (5242102231).

It is not a de Polignac number, because 5242102221 - 2¹⁴ = 5242085837 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 (5242102211) 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, 873683701 + ... + 873683706.

It is an arithmetic number, because the mean of its divisors is an integer number (1747367408).

Almost surely, 2^5242102221 is an apocalyptic number.

It is an amenable number.

5242102221 is a deficient number, since it is larger than the sum of its proper divisors (1747367411).

5242102221 is a wasteful number, since it uses less digits than its factorization.

5242102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747367410.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 5242102221 is about 72402.3633661222. The cubic root of 5242102221 is about 1737.1413647319.

Adding to 5242102221 its reverse (1222012425), we get a palindrome (6464114646).

The spelling of 5242102221 in words is "five billion, two hundred forty-two million, one hundred two thousand, two hundred twenty-one".