2216373585001 has 3 divisors (see below), whose sum is σ = 2216375073751. Its totient is φ = 2216372096252.

The previous prime is 2216373584993. The next prime is 2216373585011. The reversal of 2216373585001 is 1005853736122.

The square root of 2216373585001 is 1488749.

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 can be written as a sum of positive squares in only one way, i.e., 2072019181401 + 144354403600 = 1439451^2 + 379940^2 .

It is not a de Polignac number, because 2216373585001 - 2³ = 2216373584993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216373585011) 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, 744375 + ... + 2233123.

Almost surely, 2^{2216373585001} is an apocalyptic number.

2216373585001 is the 1488749-th square number.

2216373585001 is the 744375-th centered octagonal number.

It is an amenable number.

2216373585001 is a deficient number, since it is larger than the sum of its proper divisors (1488750).

2216373585001 is an frugal number, since it uses more digits than its factorization.

2216373585001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977498 (or 1488749 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 2216373585001 in words is "two trillion, two hundred sixteen billion, three hundred seventy-three million, five hundred eighty-five thousand, one".