120142043514221 has 2 divisors, whose sum is σ = 120142043514222. Its totient is φ = 120142043514220.

The previous prime is 120142043514203. The next prime is 120142043514247. The reversal of 120142043514221 is 122415340241021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106478892337321 + 13663151176900 = 10318861^2 + 3696370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120142043514221 is a prime.

It is a super-2 number, since 2×120142043514221² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120142043516221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071021757110 + 60071021757111.

It is an arithmetic number, because the mean of its divisors is an integer number (60071021757111).

Almost surely, 2^{120142043514221} is an apocalyptic number.

It is an amenable number.

120142043514221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120142043514221 is an equidigital number, since it uses as much as digits as its factorization.

120142043514221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 120142043514221 its reverse (122415340241021), we get a palindrome (242557383755242).

The spelling of 120142043514221 in words is "one hundred twenty trillion, one hundred forty-two billion, forty-three million, five hundred fourteen thousand, two hundred twenty-one".