222443111021042 has 4 divisors (see below), whose sum is σ = 333664666531566. Its totient is φ = 111221555510520.

The previous prime is 222443111021009. The next prime is 222443111021051. The reversal of 222443111021042 is 240120111344222.

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., 217606722747001 + 4836388274041 = 14751499^2 + 2199179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222443111020996 and 222443111021014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610777755259 + ... + 55610777755262.

Almost surely, 2^{222443111021042} is an apocalyptic number.

222443111021042 is a deficient number, since it is larger than the sum of its proper divisors (111221555510524).

222443111021042 is a wasteful number, since it uses less digits than its factorization.

222443111021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111221555510523.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 222443111021042 its reverse (240120111344222), we get a palindrome (462563222365264).

The spelling of 222443111021042 in words is "two hundred twenty-two trillion, four hundred forty-three billion, one hundred eleven million, twenty-one thousand, forty-two".