442111122 has 40 divisors (see below), whose sum is σ = 1013710896. Its totient is φ = 143940888.

The previous prime is 442111121. The next prime is 442111127. The reversal of 442111122 is 221111244.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 442111095 and 442111104.

It is not an unprimeable number, because it can be changed into a prime (442111121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24768 + ... + 38699.

Almost surely, 2^442111122 is an apocalyptic number.

442111122 is an abundant number, since it is smaller than the sum of its proper divisors (571599774).

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

442111122 is a wasteful number, since it uses less digits than its factorization.

442111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63524 (or 63515 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 442111122 is about 21026.4386428135. The cubic root of 442111122 is about 761.8049907080.

Adding to 442111122 its reverse (221111244), we get a palindrome (663222366).

The spelling of 442111122 in words is "four hundred forty-two million, one hundred eleven thousand, one hundred twenty-two".