22505453403211 has 8 divisors (see below), whose sum is σ = 22931771741424. Its totient is φ = 22079197551840.

The previous prime is 22505453403197. The next prime is 22505453403229. The reversal of 22505453403211 is 11230435450522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22505453403211 - 2²³ = 22505445014603 is a prime.

It is a super-2 number, since 2×22505453403211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22505453406211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14894245 + ... + 16335526.

It is an arithmetic number, because the mean of its divisors is an integer number (2866471467678).

Almost surely, 2^{22505453403211} is an apocalyptic number.

22505453403211 is a deficient number, since it is larger than the sum of its proper divisors (426318338213).

22505453403211 is a wasteful number, since it uses less digits than its factorization.

22505453403211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31243421.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 22505453403211 its reverse (11230435450522), we get a palindrome (33735888853733).

The spelling of 22505453403211 in words is "twenty-two trillion, five hundred five billion, four hundred fifty-three million, four hundred three thousand, two hundred eleven".