1142141221020 has 48 divisors (see below), whose sum is σ = 3252198741120. Its totient is φ = 299408771136.

The previous prime is 1142141221009. The next prime is 1142141221051. The reversal of 1142141221020 is 201221412411.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 161315842 + ... + 161322921.

It is an arithmetic number, because the mean of its divisors is an integer number (67754140440).

Almost surely, 2^{1142141221020} is an apocalyptic number.

1142141221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142141221020 is an abundant number, since it is smaller than the sum of its proper divisors (2110057520100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142141221020 is a wasteful number, since it uses less digits than its factorization.

1142141221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322638834 (or 322638832 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1142141221020 its reverse (201221412411), we get a palindrome (1343362633431).

The spelling of 1142141221020 in words is "one trillion, one hundred forty-two billion, one hundred forty-one million, two hundred twenty-one thousand, twenty".