142412212421 has 2 divisors, whose sum is σ = 142412212422. Its totient is φ = 142412212420.

The previous prime is 142412212409. The next prime is 142412212469. The reversal of 142412212421 is 124212214241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86945368225 + 55466844196 = 294865^2 + 235514^2 .

It is a cyclic number.

It is not a de Polignac number, because 142412212421 - 2⁶ = 142412212357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142412212471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71206106210 + 71206106211.

It is an arithmetic number, because the mean of its divisors is an integer number (71206106211).

Almost surely, 2^142412212421 is an apocalyptic number.

It is an amenable number.

142412212421 is a deficient number, since it is larger than the sum of its proper divisors (1).

142412212421 is an equidigital number, since it uses as much as digits as its factorization.

142412212421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 26.

Adding to 142412212421 its reverse (124212214241), we get a palindrome (266624426662).

The spelling of 142412212421 in words is "one hundred forty-two billion, four hundred twelve million, two hundred twelve thousand, four hundred twenty-one".