22402223405 has 4 divisors (see below), whose sum is σ = 26882668092. Its totient is φ = 17921778720.

The previous prime is 22402223351. The next prime is 22402223447. The reversal of 22402223405 is 50432220422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13430723881 + 8971499524 = 115891^2 + 94718^2 .

It is not a de Polignac number, because 22402223405 - 2⁶ = 22402223341 is a prime.

It is a super-2 number, since 2×22402223405² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2240222336 + ... + 2240222345.

It is an arithmetic number, because the mean of its divisors is an integer number (6720667023).

Almost surely, 2^22402223405 is an apocalyptic number.

It is an amenable number.

22402223405 is a deficient number, since it is larger than the sum of its proper divisors (4480444687).

22402223405 is an equidigital number, since it uses as much as digits as its factorization.

22402223405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480444686.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 22402223405 its reverse (50432220422), we get a palindrome (72834443827).

The spelling of 22402223405 in words is "twenty-two billion, four hundred two million, two hundred twenty-three thousand, four hundred five".