120001012442 has 24 divisors (see below), whose sum is σ = 185186144700. Its totient is φ = 58319029760.

The previous prime is 120001012427. The next prime is 120001012471. The reversal of 120001012442 is 244210100021.

It can be written as a sum of positive squares in 6 ways, for example, as 13574347081 + 106426665361 = 116509^2 + 326231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120001012442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 838034 + ... + 970722.

Almost surely, 2^120001012442 is an apocalyptic number.

120001012442 is a deficient number, since it is larger than the sum of its proper divisors (65185132258).

120001012442 is a wasteful number, since it uses less digits than its factorization.

120001012442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133042 (or 133001 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 120001012442 its reverse (244210100021), we get a palindrome (364211112463).

The spelling of 120001012442 in words is "one hundred twenty billion, one million, twelve thousand, four hundred forty-two".