22200442442 has 16 divisors (see below), whose sum is σ = 34680177000. Its totient is φ = 10645521600.

The previous prime is 22200442423. The next prime is 22200442447. The reversal of 22200442442 is 24424400222.

It can be written as a sum of positive squares in 4 ways, for example, as 20569009561 + 1631432881 = 143419^2 + 40391^2 .

It is not an unprimeable number, because it can be changed into a prime (22200442447) 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, 1275809 + ... + 1293092.

Almost surely, 2^22200442442 is an apocalyptic number.

22200442442 is a deficient number, since it is larger than the sum of its proper divisors (12479734558).

22200442442 is a wasteful number, since it uses less digits than its factorization.

22200442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569081.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22200442442 its reverse (24424400222), we get a palindrome (46624842664).

The spelling of 22200442442 in words is "twenty-two billion, two hundred million, four hundred forty-two thousand, four hundred forty-two".