220712805663131 has 2 divisors, whose sum is σ = 220712805663132. Its totient is φ = 220712805663130.

The previous prime is 220712805663113. The next prime is 220712805663137. The reversal of 220712805663131 is 131366508217022.

Together with previous prime (220712805663113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220712805663131 - 2¹⁴ = 220712805646747 is a prime.

It is a super-2 number, since 2×220712805663131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220712805663137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110356402831565 + 110356402831566.

It is an arithmetic number, because the mean of its divisors is an integer number (110356402831566).

Almost surely, 2^{220712805663131} is an apocalyptic number.

220712805663131 is a deficient number, since it is larger than the sum of its proper divisors (1).

220712805663131 is an equidigital number, since it uses as much as digits as its factorization.

220712805663131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 220712805663131 in words is "two hundred twenty trillion, seven hundred twelve billion, eight hundred five million, six hundred sixty-three thousand, one hundred thirty-one".