1142044042221 has 48 divisors (see below), whose sum is σ = 1688191964160. Its totient is φ = 743804998560.

The previous prime is 1142044042213. The next prime is 1142044042229. The reversal of 1142044042221 is 1222404402411.

1142044042221 is a `hidden beast` number, since 1 + 14 + 20 + 4 + 404 + 2 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (1142044042213) and next prime (1142044042229).

It is not a de Polignac number, because 1142044042221 - 2³ = 1142044042213 is a prime.

It is a super-2 number, since 2×1142044042221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142044042229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26286006 + ... + 26329416.

It is an arithmetic number, because the mean of its divisors is an integer number (35170665920).

Almost surely, 2^{1142044042221} is an apocalyptic number.

It is an amenable number.

1142044042221 is a deficient number, since it is larger than the sum of its proper divisors (546147921939).

1142044042221 is a wasteful number, since it uses less digits than its factorization.

1142044042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43886 (or 43883 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 1142044042221 its reverse (1222404402411), we get a palindrome (2364448444632).

The spelling of 1142044042221 in words is "one trillion, one hundred forty-two billion, forty-four million, forty-two thousand, two hundred twenty-one".