1122152142144 has 56 divisors (see below), whose sum is σ = 3238939143648. Its totient is φ = 340046103040.

The previous prime is 1122152142143. The next prime is 1122152142161. The reversal of 1122152142144 is 4412412512211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122152142143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 265658907 + ... + 265663130.

Almost surely, 2^{1122152142144} is an apocalyptic number.

It is an amenable number.

1122152142144 is an abundant number, since it is smaller than the sum of its proper divisors (2116787001504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122152142144 is a wasteful number, since it uses less digits than its factorization.

1122152142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531322063 (or 531322053 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

Adding to 1122152142144 its reverse (4412412512211), we get a palindrome (5534564654355).

The spelling of 1122152142144 in words is "one trillion, one hundred twenty-two billion, one hundred fifty-two million, one hundred forty-two thousand, one hundred forty-four".