1212022042 has 32 divisors (see below), whose sum is σ = 2274459264. Its totient is φ = 470587200.

The previous prime is 1212022013. The next prime is 1212022111. The reversal of 1212022042 is 2402202121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31692 + ... + 58552.

It is an arithmetic number, because the mean of its divisors is an integer number (71076852).

Almost surely, 2^1212022042 is an apocalyptic number.

1212022042 is a deficient number, since it is larger than the sum of its proper divisors (1062437222).

1212022042 is a wasteful number, since it uses less digits than its factorization.

1212022042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27174.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1212022042 is about 34814.1069395726. The cubic root of 1212022042 is about 1066.1954856231.

Adding to 1212022042 its reverse (2402202121), we get a palindrome (3614224163).

The spelling of 1212022042 in words is "one billion, two hundred twelve million, twenty-two thousand, forty-two".