1201321244112 has 160 divisors (see below), whose sum is σ = 3593731307904. Its totient is φ = 341758771200.

The previous prime is 1201321244111. The next prime is 1201321244113. The reversal of 1201321244112 is 2114421231021.

It is an interprime number because it is at equal distance from previous prime (1201321244111) and next prime (1201321244113).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201321244111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3394912 + ... + 3732032.

Almost surely, 2^{1201321244112} is an apocalyptic number.

1201321244112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201321244112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1796865653952).

1201321244112 is an abundant number, since it is smaller than the sum of its proper divisors (2392410063792).

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

1201321244112 is a wasteful number, since it uses less digits than its factorization.

1201321244112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337557 (or 337551 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1201321244112 its reverse (2114421231021), we get a palindrome (3315742475133).

The spelling of 1201321244112 in words is "one trillion, two hundred one billion, three hundred twenty-one million, two hundred forty-four thousand, one hundred twelve".