1200122323442 has 64 divisors (see below), whose sum is σ = 2170554568704. Its totient is φ = 486543710400.

The previous prime is 1200122323357. The next prime is 1200122323451. The reversal of 1200122323442 is 2443232210021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28826213 + ... + 28867815.

It is an arithmetic number, because the mean of its divisors is an integer number (33914915136).

Almost surely, 2^{1200122323442} is an apocalyptic number.

1200122323442 is a deficient number, since it is larger than the sum of its proper divisors (970432245262).

1200122323442 is a wasteful number, since it uses less digits than its factorization.

1200122323442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42623.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1200122323442 its reverse (2443232210021), we get a palindrome (3643354533463).

The spelling of 1200122323442 in words is "one trillion, two hundred billion, one hundred twenty-two million, three hundred twenty-three thousand, four hundred forty-two".