6221127216 has 80 divisors (see below), whose sum is σ = 16814923776. Its totient is φ = 1978234368.

The previous prime is 6221127197. The next prime is 6221127217. The reversal of 6221127216 is 6127211226.

It is not an unprimeable number, because it can be changed into a prime (6221127217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415476 + ... + 430188.

Almost surely, 2^6221127216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6221127216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8407461888).

6221127216 is an abundant number, since it is smaller than the sum of its proper divisors (10593796560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6221127216 is a wasteful number, since it uses less digits than its factorization.

6221127216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15130 (or 15124 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 6221127216 is about 78874.1226005082. The cubic root of 6221127216 is about 1839.1748836693.

The spelling of 6221127216 in words is "six billion, two hundred twenty-one million, one hundred twenty-seven thousand, two hundred sixteen".