2216204452037 has 4 divisors (see below), whose sum is σ = 2238147070476. Its totient is φ = 2194261833600.

The previous prime is 2216204452031. The next prime is 2216204452069. The reversal of 2216204452037 is 7302544026122.

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 1172280432961 + 1043924019076 = 1082719^2 + 1021726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216204452037 - 2¹⁸ = 2216204189893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216204452031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10971309068 + ... + 10971309269.

It is an arithmetic number, because the mean of its divisors is an integer number (559536767619).

Almost surely, 2^{2216204452037} is an apocalyptic number.

It is an amenable number.

2216204452037 is a deficient number, since it is larger than the sum of its proper divisors (21942618439).

2216204452037 is a wasteful number, since it uses less digits than its factorization.

2216204452037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21942618438.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 2216204452037 its reverse (7302544026122), we get a palindrome (9518748478159).

The spelling of 2216204452037 in words is "two trillion, two hundred sixteen billion, two hundred four million, four hundred fifty-two thousand, thirty-seven".