1222085636831 has 2 divisors, whose sum is σ = 1222085636832. Its totient is φ = 1222085636830.

The previous prime is 1222085636767. The next prime is 1222085636923. The reversal of 1222085636831 is 1386365802221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222085636831 - 2⁶ = 1222085636767 is a prime.

It is a super-2 number, since 2×1222085636831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222085633831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611042818415 + 611042818416.

It is an arithmetic number, because the mean of its divisors is an integer number (611042818416).

Almost surely, 2^{1222085636831} is an apocalyptic number.

1222085636831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222085636831 is an equidigital number, since it uses as much as digits as its factorization.

1222085636831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 1222085636831 in words is "one trillion, two hundred twenty-two billion, eighty-five million, six hundred thirty-six thousand, eight hundred thirty-one".