22402444224442 has 8 divisors (see below), whose sum is σ = 33620493416436. Its totient is φ = 11195613085632.

The previous prime is 22402444224373. The next prime is 22402444224449. The reversal of 22402444224442 is 24442244420422.

It can be written as a sum of positive squares in 2 ways, for example, as 13528485815881 + 8873958408561 = 3678109^2 + 2978919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22402444224442² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22402444224395 and 22402444224404.

It is not an unprimeable number, because it can be changed into a prime (22402444224449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804508303 + ... + 2804516290.

Almost surely, 2^{22402444224442} is an apocalyptic number.

22402444224442 is a deficient number, since it is larger than the sum of its proper divisors (11218049191994).

22402444224442 is a wasteful number, since it uses less digits than its factorization.

22402444224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609026592.

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 22402444224442 its reverse (24442244420422), we get a palindrome (46844688644864).

The spelling of 22402444224442 in words is "twenty-two trillion, four hundred two billion, four hundred forty-four million, two hundred twenty-four thousand, four hundred forty-two".