2223186138361 has 4 divisors (see below), whose sum is σ = 2224966112500. Its totient is φ = 2221406164224.

The previous prime is 2223186138347. The next prime is 2223186138367. The reversal of 2223186138361 is 1638316813222.

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 1370435470336 + 852750668025 = 1170656^2 + 923445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223186138361 - 2¹⁵ = 2223186105593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223186138367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889985196 + ... + 889987693.

It is an arithmetic number, because the mean of its divisors is an integer number (556241528125).

Almost surely, 2^{2223186138361} is an apocalyptic number.

It is an amenable number.

2223186138361 is a deficient number, since it is larger than the sum of its proper divisors (1779974139).

2223186138361 is a wasteful number, since it uses less digits than its factorization.

2223186138361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779974138.

The product of its digits is 497664, while the sum is 46.

The spelling of 2223186138361 in words is "two trillion, two hundred twenty-three billion, one hundred eighty-six million, one hundred thirty-eight thousand, three hundred sixty-one".