2269207819321 has 3 divisors (see below), whose sum is σ = 2269209325711. Its totient is φ = 2269206312932.

The previous prime is 2269207819271. The next prime is 2269207819369. The reversal of 2269207819321 is 1239187029622.

It is a happy number.

The square root of 2269207819321 is 1506389.

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., 1244699466921 + 1024508352400 = 1115661^2 + 1012180^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2269207819321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2269207819381) 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 2 ways as a sum of consecutive naturals, for example, 753195 + ... + 2259583.

Almost surely, 2^{2269207819321} is an apocalyptic number.

2269207819321 is the 1506389-th square number.

2269207819321 is the 753195-th centered octagonal number.

It is an amenable number.

2269207819321 is a deficient number, since it is larger than the sum of its proper divisors (1506390).

2269207819321 is an frugal number, since it uses more digits than its factorization.

2269207819321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012778 (or 1506389 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 2269207819321 in words is "two trillion, two hundred sixty-nine billion, two hundred seven million, eight hundred nineteen thousand, three hundred twenty-one".