1122121442 has 8 divisors (see below), whose sum is σ = 1812657756. Its totient is φ = 517902192.

The previous prime is 1122121439. The next prime is 1122121489. The reversal of 1122121442 is 2441212211.

It can be written as a sum of positive squares in 2 ways, for example, as 1077218041 + 44903401 = 32821^2 + 6701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21579233 + ... + 21579284.

Almost surely, 2^1122121442 is an apocalyptic number.

1122121442 is a deficient number, since it is larger than the sum of its proper divisors (690536314).

1122121442 is a wasteful number, since it uses less digits than its factorization.

1122121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43158532.

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

The square root of 1122121442 is about 33498.0811689267. The cubic root of 1122121442 is about 1039.1540958078.

Adding to 1122121442 its reverse (2441212211), we get a palindrome (3563333653).

The spelling of 1122121442 in words is "one billion, one hundred twenty-two million, one hundred twenty-one thousand, four hundred forty-two".