6221220522151 has 2 divisors, whose sum is σ = 6221220522152. Its totient is φ = 6221220522150.

The previous prime is 6221220522107. The next prime is 6221220522157. The reversal of 6221220522151 is 1512250221226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6221220522151 - 2³⁷ = 6083781568679 is a prime.

It is a super-2 number, since 2×6221220522151² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6221220522157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110610261075 + 3110610261076.

It is an arithmetic number, because the mean of its divisors is an integer number (3110610261076).

Almost surely, 2^{6221220522151} is an apocalyptic number.

6221220522151 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221220522151 is an equidigital number, since it uses as much as digits as its factorization.

6221220522151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 6221220522151 its reverse (1512250221226), we get a palindrome (7733470743377).

The spelling of 6221220522151 in words is "six trillion, two hundred twenty-one billion, two hundred twenty million, five hundred twenty-two thousand, one hundred fifty-one".