4221255213 has 48 divisors (see below), whose sum is σ = 7571865600. Its totient is φ = 2211455520.

The previous prime is 4221255211. The next prime is 4221255217. The reversal of 4221255213 is 3125521224.

4221255213 is a `hidden beast` number, since 422 + 1 + 25 + 5 + 213 = 666.

It is not a de Polignac number, because 4221255213 - 2¹ = 4221255211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221255211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19773 + ... + 93986.

It is an arithmetic number, because the mean of its divisors is an integer number (157747200).

Almost surely, 2^4221255213 is an apocalyptic number.

It is an amenable number.

4221255213 is a deficient number, since it is larger than the sum of its proper divisors (3350610387).

4221255213 is a wasteful number, since it uses less digits than its factorization.

4221255213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113822 (or 113819 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4221255213 is about 64971.1875603332. The cubic root of 4221255213 is about 1616.1457952890.

Adding to 4221255213 its reverse (3125521224), we get a palindrome (7346776437).

The spelling of 4221255213 in words is "four billion, two hundred twenty-one million, two hundred fifty-five thousand, two hundred thirteen".