1122421142 has 4 divisors (see below), whose sum is σ = 1683631716. Its totient is φ = 561210570.

The previous prime is 1122421129. The next prime is 1122421163. The reversal of 1122421142 is 2411242211.

1122421142 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280605284 + ... + 280605287.

It is an arithmetic number, because the mean of its divisors is an integer number (420907929).

Almost surely, 2^1122421142 is an apocalyptic number.

1122421142 is a deficient number, since it is larger than the sum of its proper divisors (561210574).

1122421142 is an equidigital number, since it uses as much as digits as its factorization.

1122421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561210573.

The product of its digits is 256, while the sum is 20.

The square root of 1122421142 is about 33502.5542608321. The cubic root of 1122421142 is about 1039.2466011727.

Adding to 1122421142 its reverse (2411242211), we get a palindrome (3533663353).

The spelling of 1122421142 in words is "one billion, one hundred twenty-two million, four hundred twenty-one thousand, one hundred forty-two".