1142330220021 has 32 divisors (see below), whose sum is σ = 1605212743680. Its totient is φ = 720598334400.

The previous prime is 1142330220019. The next prime is 1142330220043. The reversal of 1142330220021 is 1200220332411.

It is not a de Polignac number, because 1142330220021 - 2¹ = 1142330220019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142330220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142330220721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311175016 + ... + 311178686.

It is an arithmetic number, because the mean of its divisors is an integer number (50162898240).

Almost surely, 2^{1142330220021} is an apocalyptic number.

It is an amenable number.

1142330220021 is a deficient number, since it is larger than the sum of its proper divisors (462882523659).

1142330220021 is a wasteful number, since it uses less digits than its factorization.

1142330220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1142330220021 its reverse (1200220332411), we get a palindrome (2342550552432).

The spelling of 1142330220021 in words is "one trillion, one hundred forty-two billion, three hundred thirty million, two hundred twenty thousand, twenty-one".