4221250013 has 4 divisors (see below), whose sum is σ = 4249580700. Its totient is φ = 4192919328.

The previous prime is 4221249971. The next prime is 4221250021. The reversal of 4221250013 is 3100521224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 550465444 + 3670784569 = 23462^2 + 60587^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221250013 - 2¹⁰ = 4221248989 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 (4221270013) 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, 14165120 + ... + 14165417.

It is an arithmetic number, because the mean of its divisors is an integer number (1062395175).

Almost surely, 2^4221250013 is an apocalyptic number.

It is an amenable number.

4221250013 is a deficient number, since it is larger than the sum of its proper divisors (28330687).

4221250013 is a wasteful number, since it uses less digits than its factorization.

4221250013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28330686.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4221250013 is about 64971.1475425823. The cubic root of 4221250013 is about 1616.1451316663.

Adding to 4221250013 its reverse (3100521224), we get a palindrome (7321771237).

The spelling of 4221250013 in words is "four billion, two hundred twenty-one million, two hundred fifty thousand, thirteen".