6221612161231 has 2 divisors, whose sum is σ = 6221612161232. Its totient is φ = 6221612161230.

The previous prime is 6221612161199. The next prime is 6221612161277. The reversal of 6221612161231 is 1321612161226.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6221612161231 - 2⁵ = 6221612161199 is a prime.

It is a super-2 number, since 2×6221612161231² (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 (6221612161931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110806080615 + 3110806080616.

It is an arithmetic number, because the mean of its divisors is an integer number (3110806080616).

Almost surely, 2^{6221612161231} is an apocalyptic number.

6221612161231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221612161231 is an equidigital number, since it uses as much as digits as its factorization.

6221612161231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The spelling of 6221612161231 in words is "six trillion, two hundred twenty-one billion, six hundred twelve million, one hundred sixty-one thousand, two hundred thirty-one".