142220112440 has 64 divisors (see below), whose sum is σ = 366123663360. Its totient is φ = 48705874560.

The previous prime is 142220112421. The next prime is 142220112449. The reversal of 142220112440 is 44211022241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142220112449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40376 + ... + 534855.

It is an arithmetic number, because the mean of its divisors is an integer number (5720682240).

Almost surely, 2^142220112440 is an apocalyptic number.

142220112440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142220112440 is an abundant number, since it is smaller than the sum of its proper divisors (223903550920).

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

142220112440 is a wasteful number, since it uses less digits than its factorization.

142220112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576132 (or 576128 counting only the distinct ones).

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

Adding to 142220112440 its reverse (44211022241), we get a palindrome (186431134681).

The spelling of 142220112440 in words is "one hundred forty-two billion, two hundred twenty million, one hundred twelve thousand, four hundred forty".