1222132042 has 4 divisors (see below), whose sum is σ = 1833198066. Its totient is φ = 611066020.

The previous prime is 1222132019. The next prime is 1222132061. The reversal of 1222132042 is 2402312221.

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., 1222131681 + 361 = 34959^2 + 19^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305533009 + ... + 305533012.

Almost surely, 2^1222132042 is an apocalyptic number.

1222132042 is a deficient number, since it is larger than the sum of its proper divisors (611066024).

1222132042 is an equidigital number, since it uses as much as digits as its factorization.

1222132042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611066023.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1222132042 is about 34959.0051631908. The cubic root of 1222132042 is about 1069.1518133374.

Adding to 1222132042 its reverse (2402312221), we get a palindrome (3624444263).

The spelling of 1222132042 in words is "one billion, two hundred twenty-two million, one hundred thirty-two thousand, forty-two".