22240020405 has 16 divisors (see below), whose sum is σ = 35590633344. Its totient is φ = 11859144000.

The previous prime is 22240020373. The next prime is 22240020437. The reversal of 22240020405 is 50402004222.

It is an interprime number because it is at equal distance from previous prime (22240020373) and next prime (22240020437).

It is not a de Polignac number, because 22240020405 - 2⁵ = 22240020373 is a prime.

It is a super-2 number, since 2×22240020405² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52249 + ... + 217278.

It is an arithmetic number, because the mean of its divisors is an integer number (2224414584).

Almost surely, 2^22240020405 is an apocalyptic number.

It is an amenable number.

22240020405 is a deficient number, since it is larger than the sum of its proper divisors (13350612939).

22240020405 is a wasteful number, since it uses less digits than its factorization.

22240020405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275036.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 22240020405 its reverse (50402004222), we get a palindrome (72642024627).

The spelling of 22240020405 in words is "twenty-two billion, two hundred forty million, twenty thousand, four hundred five".