22200400042 has 16 divisors (see below), whose sum is σ = 33482727432. Its totient is φ = 11039535360.

The previous prime is 22200400003. The next prime is 22200400043. The reversal of 22200400042 is 24000400222.

It can be written as a sum of positive squares in 4 ways, for example, as 22049577081 + 150822961 = 148491^2 + 12281^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22200399989 and 22200400025.

It is not an unprimeable number, because it can be changed into a prime (22200400043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1153942 + ... + 1173022.

Almost surely, 2^22200400042 is an apocalyptic number.

22200400042 is a deficient number, since it is larger than the sum of its proper divisors (11282327390).

22200400042 is a wasteful number, since it uses less digits than its factorization.

22200400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22233.

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22200400042 its reverse (24000400222), we get a palindrome (46200800264).

The spelling of 22200400042 in words is "twenty-two billion, two hundred million, four hundred thousand, forty-two".