142400521204212 has 24 divisors (see below), whose sum is σ = 332272560743200. Its totient is φ = 47466172125216.

The previous prime is 142400521204199. The next prime is 142400521204229. The reversal of 142400521204212 is 212402125004241.

It is a self number, because there is not a number n which added to its sum of digits gives 142400521204212.

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 7 ways as a sum of consecutive naturals, for example, 82646287 + ... + 84351702.

Almost surely, 2^{142400521204212} is an apocalyptic number.

142400521204212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142400521204212 is an abundant number, since it is smaller than the sum of its proper divisors (189872039538988).

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

142400521204212 is a wasteful number, since it uses less digits than its factorization.

142400521204212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167069055 (or 167069053 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 142400521204212 its reverse (212402125004241), we get a palindrome (354802646208453).

The spelling of 142400521204212 in words is "one hundred forty-two trillion, four hundred billion, five hundred twenty-one million, two hundred four thousand, two hundred twelve".