6221212030 has 16 divisors (see below), whose sum is σ = 12216198384. Its totient is φ = 2262258880.

The previous prime is 6221211977. The next prime is 6221212031. The reversal of 6221212030 is 302121226.

It is a junction number, because it is equal to n+sod(n) for n = 6221211989 and 6221212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221212031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28278127 + ... + 28278346.

It is an arithmetic number, because the mean of its divisors is an integer number (763512399).

Almost surely, 2^6221212030 is an apocalyptic number.

6221212030 is a deficient number, since it is larger than the sum of its proper divisors (5994986354).

6221212030 is a wasteful number, since it uses less digits than its factorization.

6221212030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56556491.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 6221212030 is about 78874.6602528341. The cubic root of 6221212030 is about 1839.1832415903.

Adding to 6221212030 its reverse (302121226), we get a palindrome (6523333256).

The spelling of 6221212030 in words is "six billion, two hundred twenty-one million, two hundred twelve thousand, thirty".