22105004451 has 16 divisors (see below), whose sum is σ = 29693690880. Its totient is φ = 14626553760.

The previous prime is 22105004437. The next prime is 22105004459. The reversal of 22105004451 is 15440050122.

It is not a de Polignac number, because 22105004451 - 2⁵ = 22105004419 is a prime.

It is a super-2 number, since 2×22105004451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22105004459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2489646 + ... + 2498508.

It is an arithmetic number, because the mean of its divisors is an integer number (1855855680).

Almost surely, 2^22105004451 is an apocalyptic number.

22105004451 is a deficient number, since it is larger than the sum of its proper divisors (7588686429).

22105004451 is a wasteful number, since it uses less digits than its factorization.

22105004451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 22105004451 its reverse (15440050122), we get a palindrome (37545054573).

The spelling of 22105004451 in words is "twenty-two billion, one hundred five million, four thousand, four hundred fifty-one".