1142224130021 has 32 divisors (see below), whose sum is σ = 1278031154400. Its totient is φ = 1013938421760.

The previous prime is 1142224130009. The next prime is 1142224130057. The reversal of 1142224130021 is 1200314222411.

It can be written as a sum of positive squares in 16 ways, for example, as 312095409025 + 830128720996 = 558655^2 + 911114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142224130021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142224130521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183604691 + ... + 183610911.

It is an arithmetic number, because the mean of its divisors is an integer number (39938473575).

Almost surely, 2^{1142224130021} is an apocalyptic number.

It is an amenable number.

1142224130021 is a deficient number, since it is larger than the sum of its proper divisors (135807024379).

1142224130021 is a wasteful number, since it uses less digits than its factorization.

1142224130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1142224130021 its reverse (1200314222411), we get a palindrome (2342538352432).

The spelling of 1142224130021 in words is "one trillion, one hundred forty-two billion, two hundred twenty-four million, one hundred thirty thousand, twenty-one".