142440220122 has 8 divisors (see below), whose sum is σ = 284880440256. Its totient is φ = 47480073372.

The previous prime is 142440220099. The next prime is 142440220159. The reversal of 142440220122 is 221022044241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

142440220122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 142440220092 and 142440220101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11870018338 + ... + 11870018349.

It is an arithmetic number, because the mean of its divisors is an integer number (35610055032).

Almost surely, 2^142440220122 is an apocalyptic number.

142440220122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142440220122 is a wasteful number, since it uses less digits than its factorization.

142440220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23740036692.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 142440220122 its reverse (221022044241), we get a palindrome (363462264363).

The spelling of 142440220122 in words is "one hundred forty-two billion, four hundred forty million, two hundred twenty thousand, one hundred twenty-two".