1201202412144 has 160 divisors (see below), whose sum is σ = 3584495101440. Its totient is φ = 339524545536.

The previous prime is 1201202412119. The next prime is 1201202412149. The reversal of 1201202412144 is 4412142021021.

It is a happy number.

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 (1201202412149) 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, 23890359 + ... + 23940585.

It is an arithmetic number, because the mean of its divisors is an integer number (22403094384).

Almost surely, 2^{1201202412144} is an apocalyptic number.

1201202412144 is a gapful number since it is divisible by the number (14) 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 1201202412144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792247550720).

1201202412144 is an abundant number, since it is smaller than the sum of its proper divisors (2383292689296).

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

1201202412144 is a wasteful number, since it uses less digits than its factorization.

1201202412144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51007 (or 51001 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1201202412144 its reverse (4412142021021), we get a palindrome (5613344433165).

The spelling of 1201202412144 in words is "one trillion, two hundred one billion, two hundred two million, four hundred twelve thousand, one hundred forty-four".