11272222052569 has 3 divisors (see below), whose sum is σ = 11272225409983. Its totient is φ = 11272218695156.

The previous prime is 11272222052543. The next prime is 11272222052621. The reversal of 11272222052569 is 96525022227211.

The square root of 11272222052569 is 3357413.

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., 9660876158025 + 1611345894544 = 3108195^2 + 1269388^2 .

It is not a de Polignac number, because 11272222052569 - 2¹¹ = 11272222050521 is a prime.

It is a super-2 number, since 2×11272222052569² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11272222052869) 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, 1678707 + ... + 5036119.

Almost surely, 2^{11272222052569} is an apocalyptic number.

11272222052569 is the 3357413-rd square number.

11272222052569 is the 1678707-th centered octagonal number.

It is an amenable number.

11272222052569 is a deficient number, since it is larger than the sum of its proper divisors (3357414).

11272222052569 is an frugal number, since it uses more digits than its factorization.

11272222052569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6714826 (or 3357413 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 11272222052569 in words is "eleven trillion, two hundred seventy-two billion, two hundred twenty-two million, fifty-two thousand, five hundred sixty-nine".