1142042122 has 32 divisors (see below), whose sum is σ = 1879879680. Its totient is φ = 517129920.

The previous prime is 1142042107. The next prime is 1142042129. The reversal of 1142042122 is 2212402411.

It is a self number, because there is not a number n which added to its sum of digits gives 1142042122.

It is not an unprimeable number, because it can be changed into a prime (1142042129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892279 + ... + 893557.

It is an arithmetic number, because the mean of its divisors is an integer number (58746240).

Almost surely, 2^1142042122 is an apocalyptic number.

1142042122 is a deficient number, since it is larger than the sum of its proper divisors (737837558).

1142042122 is a wasteful number, since it uses less digits than its factorization.

1142042122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1142042122 is about 33794.1137182202. The cubic root of 1142042122 is about 1045.2673238395.

Adding to 1142042122 its reverse (2212402411), we get a palindrome (3354444533).

The spelling of 1142042122 in words is "one billion, one hundred forty-two million, forty-two thousand, one hundred twenty-two".