1021142242 has 8 divisors (see below), whose sum is σ = 1567334736. Its totient is φ = 498697332.

The previous prime is 1021142203. The next prime is 1021142267. The reversal of 1021142242 is 2422411201.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5936788 + ... + 5936959.

It is an arithmetic number, because the mean of its divisors is an integer number (195916842).

Almost surely, 2^1021142242 is an apocalyptic number.

1021142242 is a deficient number, since it is larger than the sum of its proper divisors (546192494).

1021142242 is a wasteful number, since it uses less digits than its factorization.

1021142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11873792.

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

The square root of 1021142242 is about 31955.3163339060. The cubic root of 1021142242 is about 1006.9983232209.

Adding to 1021142242 its reverse (2422411201), we get a palindrome (3443553443).

The spelling of 1021142242 in words is "one billion, twenty-one million, one hundred forty-two thousand, two hundred forty-two".