1122140142 has 20 divisors (see below), whose sum is σ = 2514425496. Its totient is φ = 374046660.

The previous prime is 1122140119. The next prime is 1122140147. The reversal of 1122140142 is 2410412211.

1122140142 is a `hidden beast` number, since 1 + 1 + 221 + 401 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122140147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3463234 + ... + 3463557.

Almost surely, 2^1122140142 is an apocalyptic number.

1122140142 is an abundant number, since it is smaller than the sum of its proper divisors (1392285354).

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

1122140142 is an equidigital number, since it uses as much as digits as its factorization.

1122140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926805 (or 6926796 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1122140142 is about 33498.3602882290. The cubic root of 1122140142 is about 1039.1598682292.

Adding to 1122140142 its reverse (2410412211), we get a palindrome (3532552353).

The spelling of 1122140142 in words is "one billion, one hundred twenty-two million, one hundred forty thousand, one hundred forty-two".