142312552221 has 64 divisors (see below), whose sum is σ = 230644187136. Its totient is φ = 76340275200.

The previous prime is 142312552211. The next prime is 142312552231. The reversal of 142312552221 is 122255213241.

142312552221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142312552211) and next prime (142312552231).

It is not a de Polignac number, because 142312552221 - 2¹¹ = 142312550173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142312552211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3436881 + ... + 3478041.

It is an arithmetic number, because the mean of its divisors is an integer number (3603815424).

Almost surely, 2^142312552221 is an apocalyptic number.

It is an amenable number.

142312552221 is a deficient number, since it is larger than the sum of its proper divisors (88331634915).

142312552221 is a wasteful number, since it uses less digits than its factorization.

142312552221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41362.

The product of its digits is 9600, while the sum is 30.

Adding to 142312552221 its reverse (122255213241), we get a palindrome (264567765462).

The spelling of 142312552221 in words is "one hundred forty-two billion, three hundred twelve million, five hundred fifty-two thousand, two hundred twenty-one".