142120224122 has 16 divisors (see below), whose sum is σ = 216855321120. Its totient is φ = 69835803408.

The previous prime is 142120224109. The next prime is 142120224137. The reversal of 142120224122 is 221422021241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248768 + ... + 588324.

It is an arithmetic number, because the mean of its divisors is an integer number (13553457570).

Almost surely, 2^142120224122 is an apocalyptic number.

142120224122 is a deficient number, since it is larger than the sum of its proper divisors (74735096998).

142120224122 is a wasteful number, since it uses less digits than its factorization.

142120224122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343165.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 142120224122 its reverse (221422021241), we get a palindrome (363542245363).

The spelling of 142120224122 in words is "one hundred forty-two billion, one hundred twenty million, two hundred twenty-four thousand, one hundred twenty-two".