22221212243042 has 8 divisors (see below), whose sum is σ = 34232678320476. Its totient is φ = 10810319469552.

The previous prime is 22221212242979. The next prime is 22221212243081. The reversal of 22221212243042 is 24034221212222.

It can be written as a sum of positive squares in 2 ways, for example, as 22211416984201 + 9795258841 = 4712899^2 + 98971^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22221212242996 and 22221212243014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150143325893 + ... + 150143326040.

Almost surely, 2^{22221212243042} is an apocalyptic number.

22221212243042 is a deficient number, since it is larger than the sum of its proper divisors (12011466077434).

22221212243042 is a wasteful number, since it uses less digits than its factorization.

22221212243042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300286651972.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 22221212243042 its reverse (24034221212222), we get a palindrome (46255433455264).

The spelling of 22221212243042 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred forty-three thousand, forty-two".