22148440801369 has 3 divisors (see below), whose sum is σ = 22148445507583. Its totient is φ = 22148436095156.

The previous prime is 22148440801363. The next prime is 22148440801373. The reversal of 22148440801369 is 96310804484122.

The square root of 22148440801369 is 4706213.

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., 15444546302025 + 6703894499344 = 3929955^2 + 2589188^2 .

It is not a de Polignac number, because 22148440801369 - 2⁴¹ = 19949417545817 is a prime.

It is a super-2 number, since 2×22148440801369² (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 (22148440801363) 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, 2353107 + ... + 7059319.

Almost surely, 2^{22148440801369} is an apocalyptic number.

22148440801369 is the 4706213-rd square number.

22148440801369 is the 2353107-th centered octagonal number.

It is an amenable number.

22148440801369 is a deficient number, since it is larger than the sum of its proper divisors (4706214).

22148440801369 is an frugal number, since it uses more digits than its factorization.

22148440801369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412426 (or 4706213 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 22148440801369 in words is "twenty-two trillion, one hundred forty-eight billion, four hundred forty million, eight hundred one thousand, three hundred sixty-nine".