2212968486961 has 4 divisors (see below), whose sum is σ = 2235782595172. Its totient is φ = 2190154378752.

The previous prime is 2212968486929. The next prime is 2212968486997. The reversal of 2212968486961 is 1696848692122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 452121760000 + 1760846726961 = 672400^2 + 1326969^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212968486961 - 2⁵ = 2212968486929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212968486893 and 2212968486902.

It is not an unprimeable number, because it can be changed into a prime (2212968486661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11407053960 + ... + 11407054153.

It is an arithmetic number, because the mean of its divisors is an integer number (558945648793).

Almost surely, 2^{2212968486961} is an apocalyptic number.

It is an amenable number.

2212968486961 is a deficient number, since it is larger than the sum of its proper divisors (22814108211).

2212968486961 is an equidigital number, since it uses as much as digits as its factorization.

2212968486961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814108210.

The product of its digits is 35831808, while the sum is 64.

The spelling of 2212968486961 in words is "two trillion, two hundred twelve billion, nine hundred sixty-eight million, four hundred eighty-six thousand, nine hundred sixty-one".