6214220221 has 8 divisors (see below), whose sum is σ = 6788066688. Its totient is φ = 5641860000.

The previous prime is 6214220219. The next prime is 6214220231. The reversal of 6214220221 is 1220224126.

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 6214220221 - 2¹ = 6214220219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6214220192 and 6214220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6214220231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362805 + ... + 379546.

It is an arithmetic number, because the mean of its divisors is an integer number (848508336).

Almost surely, 2^6214220221 is an apocalyptic number.

It is an amenable number.

6214220221 is a deficient number, since it is larger than the sum of its proper divisors (573846467).

6214220221 is a wasteful number, since it uses less digits than its factorization.

6214220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743123.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 6214220221 is about 78830.3255162631. The cubic root of 6214220221 is about 1838.4939847791.

Adding to 6214220221 its reverse (1220224126), we get a palindrome (7434444347).

The spelling of 6214220221 in words is "six billion, two hundred fourteen million, two hundred twenty thousand, two hundred twenty-one".