1201322402144 has 48 divisors (see below), whose sum is σ = 2392065814320. Its totient is φ = 593852428800.

The previous prime is 1201322402129. The next prime is 1201322402149. The reversal of 1201322402144 is 4412042231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201322402149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384794 + ... + 1597094.

It is an arithmetic number, because the mean of its divisors is an integer number (49834704465).

Almost surely, 2^{1201322402144} is an apocalyptic number.

It is an amenable number.

1201322402144 is a deficient number, since it is larger than the sum of its proper divisors (1190743412176).

1201322402144 is a wasteful number, since it uses less digits than its factorization.

1201322402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212663 (or 1212655 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1201322402144 its reverse (4412042231021), we get a palindrome (5613364633165).

The spelling of 1201322402144 in words is "one trillion, two hundred one billion, three hundred twenty-two million, four hundred two thousand, one hundred forty-four".