22040204242442 has 4 divisors (see below), whose sum is σ = 33060306363666. Its totient is φ = 11020102121220.

The previous prime is 22040204242391. The next prime is 22040204242451. The reversal of 22040204242442 is 24424240204022.

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

It can be written as a sum of positive squares in only one way, i.e., 22039071987241 + 1132255201 = 4694579^2 + 33649^2 .

It is a super-3 number, since 3×22040204242442³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22040204242399 and 22040204242408.

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 as a sum of consecutive naturals, namely, 5510051060609 + ... + 5510051060612.

Almost surely, 2^{22040204242442} is an apocalyptic number.

22040204242442 is a deficient number, since it is larger than the sum of its proper divisors (11020102121224).

22040204242442 is a wasteful number, since it uses less digits than its factorization.

22040204242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020102121223.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 22040204242442 its reverse (24424240204022), we get a palindrome (46464444446464).

The spelling of 22040204242442 in words is "twenty-two trillion, forty billion, two hundred four million, two hundred forty-two thousand, four hundred forty-two".