1182206226861 has 12 divisors (see below), whose sum is σ = 1862870418240. Its totient is φ = 716488622280.

The previous prime is 1182206226833. The next prime is 1182206226899. The reversal of 1182206226861 is 1686226022811.

1182206226861 is a `hidden beast` number, since 1 + 18 + 2 + 2 + 0 + 622 + 6 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 1182206226861 - 2⁵ = 1182206226829 is a prime.

It is a super-2 number, since 2×1182206226861² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182206224861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5970738421 + ... + 5970738618.

It is an arithmetic number, because the mean of its divisors is an integer number (155239201520).

Almost surely, 2^{1182206226861} is an apocalyptic number.

1182206226861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1182206226861 is a deficient number, since it is larger than the sum of its proper divisors (680664191379).

1182206226861 is a wasteful number, since it uses less digits than its factorization.

1182206226861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11941477056 (or 11941477053 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 1182206226861 in words is "one trillion, one hundred eighty-two billion, two hundred six million, two hundred twenty-six thousand, eight hundred sixty-one".