1122100042 has 16 divisors (see below), whose sum is σ = 1947951360. Its totient is φ = 474812208.

The previous prime is 1122100039. The next prime is 1122100061. The reversal of 1122100042 is 2400012211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122099995 and 1122100031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506173 + ... + 508384.

It is an arithmetic number, because the mean of its divisors is an integer number (121746960).

Almost surely, 2^1122100042 is an apocalyptic number.

1122100042 is a deficient number, since it is larger than the sum of its proper divisors (825851318).

1122100042 is a wasteful number, since it uses less digits than its factorization.

1122100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014645.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1122100042 is about 33497.7617461227. The cubic root of 1122100042 is about 1039.1474898564.

Adding to 1122100042 its reverse (2400012211), we get a palindrome (3522112253).

The spelling of 1122100042 in words is "one billion, one hundred twenty-two million, one hundred thousand, forty-two".