21269162223 has 16 divisors (see below), whose sum is σ = 32596418400. Its totient is φ = 13690494720.

The previous prime is 21269162171. The next prime is 21269162231. The reversal of 21269162223 is 32226196212.

21269162223 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 9 + 1 + 622 + 23 = 666.

It is not a de Polignac number, because 21269162223 - 2¹³ = 21269154031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21269112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13581058 + ... + 13582623.

It is an arithmetic number, because the mean of its divisors is an integer number (2037276150).

Almost surely, 2^21269162223 is an apocalyptic number.

21269162223 is a deficient number, since it is larger than the sum of its proper divisors (11327256177).

21269162223 is a wasteful number, since it uses less digits than its factorization.

21269162223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27163719 (or 27163713 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 21269162223 in words is "twenty-one billion, two hundred sixty-nine million, one hundred sixty-two thousand, two hundred twenty-three".