22200040242 has 12 divisors (see below), whose sum is σ = 48100087230. Its totient is φ = 7400013408.

The previous prime is 22200040237. The next prime is 22200040283. The reversal of 22200040242 is 24204000222.

22200040242 is a `hidden beast` number, since 2 + 220 + 0 + 0 + 402 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11539271241 + 10660769001 = 107421^2 + 103251^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1233335569 = 22200040242 / (2 + 2 + 2 + 0 + 0 + 0 + 4 + 0 + 2 + 4 + 2).

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 5 ways as a sum of consecutive naturals, for example, 616667767 + ... + 616667802.

Almost surely, 2^22200040242 is an apocalyptic number.

22200040242 is an abundant number, since it is smaller than the sum of its proper divisors (25900046988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22200040242 is a wasteful number, since it uses less digits than its factorization.

22200040242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233335577 (or 1233335574 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22200040242 its reverse (24204000222), we get a palindrome (46404040464).

The spelling of 22200040242 in words is "twenty-two billion, two hundred million, forty thousand, two hundred forty-two".