142204421224 has 8 divisors (see below), whose sum is σ = 266633289810. Its totient is φ = 71102210608.

The previous prime is 142204421213. The next prime is 142204421239. The reversal of 142204421224 is 422124402241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 138957472900 + 3246948324 = 372770^2 + 56982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 142204421192 and 142204421201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8887776319 + ... + 8887776334.

Almost surely, 2^142204421224 is an apocalyptic number.

It is an amenable number.

142204421224 is a deficient number, since it is larger than the sum of its proper divisors (124428868586).

142204421224 is a wasteful number, since it uses less digits than its factorization.

142204421224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775552659 (or 17775552655 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 142204421224 its reverse (422124402241), we get a palindrome (564328823465).

The spelling of 142204421224 in words is "one hundred forty-two billion, two hundred four million, four hundred twenty-one thousand, two hundred twenty-four".