1201124042442 has 48 divisors (see below), whose sum is σ = 2816162032320. Its totient is φ = 382967082432.

The previous prime is 1201124042413. The next prime is 1201124042479. The reversal of 1201124042442 is 2442404211021.

1201124042442 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 12 + 404 + 244 + 2 = 666.

It is a super-2 number, since 2×1201124042442² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53715967 + ... + 53738322.

It is an arithmetic number, because the mean of its divisors is an integer number (58670042340).

Almost surely, 2^{1201124042442} is an apocalyptic number.

1201124042442 is an abundant number, since it is smaller than the sum of its proper divisors (1615037989878).

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

1201124042442 is a wasteful number, since it uses less digits than its factorization.

1201124042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107454329 (or 107454317 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 1201124042442 its reverse (2442404211021), we get a palindrome (3643528253463).

The spelling of 1201124042442 in words is "one trillion, two hundred one billion, one hundred twenty-four million, forty-two thousand, four hundred forty-two".