1201122123200 has 42 divisors (see below), whose sum is σ = 2955511128336. Its totient is φ = 480448848640.

The previous prime is 1201122123143. The next prime is 1201122123217. The reversal of 1201122123200 is 23212211021.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 375349064 + ... + 375352263.

Almost surely, 2^{1201122123200} is an apocalyptic number.

1201122123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201122123200 is an abundant number, since it is smaller than the sum of its proper divisors (1754389005136).

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

1201122123200 is an equidigital number, since it uses as much as digits as its factorization.

1201122123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750701349 (or 750701334 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1201122123200 its reverse (23212211021), we get a palindrome (1224334334221).

The spelling of 1201122123200 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred".