9912440220042 has 16 divisors (see below), whose sum is σ = 20991049877952. Its totient is φ = 3109785167040.

The previous prime is 9912440219989. The next prime is 9912440220071. The reversal of 9912440220042 is 2400220442199.

9912440220042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9912440220042² (a number of 27 digits) contains 22 as substring.

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, 48590393134 + ... + 48590393337.

It is an arithmetic number, because the mean of its divisors is an integer number (1311940617372).

Almost surely, 2^{9912440220042} is an apocalyptic number.

9912440220042 is an abundant number, since it is smaller than the sum of its proper divisors (11078609657910).

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

9912440220042 is a wasteful number, since it uses less digits than its factorization.

9912440220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97180786493.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 9912440220042 in words is "nine trillion, nine hundred twelve billion, four hundred forty million, two hundred twenty thousand, forty-two".