2212236794881 has 3 divisors (see below), whose sum is σ = 2212238282241. Its totient is φ = 2212235307522.

The previous prime is 2212236794869. The next prime is 2212236794893. The reversal of 2212236794881 is 1884976322122.

The square root of 2212236794881 is 1487359.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2212236794869) and next prime (2212236794893).

It is not a de Polignac number, because 2212236794881 - 2⁷ = 2212236794753 is a prime.

It is a super-2 number, since 2×2212236794881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212236794821) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 743680 + ... + 2231038.

It is an arithmetic number, because the mean of its divisors is an integer number (737412760747).

Almost surely, 2^{2212236794881} is an apocalyptic number.

2212236794881 is the 1487359-th square number.

2212236794881 is the 743680-th centered octagonal number.

It is an amenable number.

2212236794881 is a deficient number, since it is larger than the sum of its proper divisors (1487360).

2212236794881 is an frugal number, since it uses more digits than its factorization.

2212236794881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974718 (or 1487359 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 2212236794881 in words is "two trillion, two hundred twelve billion, two hundred thirty-six million, seven hundred ninety-four thousand, eight hundred eighty-one".