6221142311 has 2 divisors, whose sum is σ = 6221142312. Its totient is φ = 6221142310.

The previous prime is 6221142289. The next prime is 6221142349. The reversal of 6221142311 is 1132411226.

6221142311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6221142311 is a prime.

It is a super-2 number, since 2×6221142311² = 77405223307428841442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6221742311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110571155 + 3110571156.

It is an arithmetic number, because the mean of its divisors is an integer number (3110571156).

Almost surely, 2^6221142311 is an apocalyptic number.

6221142311 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221142311 is an equidigital number, since it uses as much as digits as its factorization.

6221142311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 6221142311 is about 78874.2182908966. The cubic root of 6221142311 is about 1839.1763711983.

Adding to 6221142311 its reverse (1132411226), we get a palindrome (7353553537).

The spelling of 6221142311 in words is "six billion, two hundred twenty-one million, one hundred forty-two thousand, three hundred eleven".