1142141221021 has 32 divisors (see below), whose sum is σ = 1187807201280. Its totient is φ = 1097590176000.

The previous prime is 1142141221009. The next prime is 1142141221051. The reversal of 1142141221021 is 1201221412411.

It is a cyclic number.

It is not a de Polignac number, because 1142141221021 - 2⁷ = 1142141220893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142141220983 and 1142141221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142141221051) 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, 294592135 + ... + 294596011.

It is an arithmetic number, because the mean of its divisors is an integer number (37118975040).

Almost surely, 2^{1142141221021} is an apocalyptic number.

It is an amenable number.

1142141221021 is a deficient number, since it is larger than the sum of its proper divisors (45665980259).

1142141221021 is a wasteful number, since it uses less digits than its factorization.

1142141221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 1142141221021 its reverse (1201221412411), we get a palindrome (2343362633432).

The spelling of 1142141221021 in words is "one trillion, one hundred forty-two billion, one hundred forty-one million, two hundred twenty-one thousand, twenty-one".