142204020122 has 16 divisors (see below), whose sum is σ = 216526474752. Its totient is φ = 70035477120.

The previous prime is 142204020121. The next prime is 142204020143. The reversal of 142204020122 is 221020402241.

It is a junction number, because it is equal to n+sod(n) for n = 142204020094 and 142204020103.

It is not an unprimeable number, because it can be changed into a prime (142204020121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696058 + ... + 1777925.

It is an arithmetic number, because the mean of its divisors is an integer number (13532904672).

Almost surely, 2^142204020122 is an apocalyptic number.

142204020122 is a deficient number, since it is larger than the sum of its proper divisors (74322454630).

142204020122 is a wasteful number, since it uses less digits than its factorization.

142204020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474293.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 142204020122 its reverse (221020402241), we get a palindrome (363224422363).

The spelling of 142204020122 in words is "one hundred forty-two billion, two hundred four million, twenty thousand, one hundred twenty-two".