1200303222144 has 128 divisors (see below), whose sum is σ = 3435234727680. Its totient is φ = 369143900160.

The previous prime is 1200303222119. The next prime is 1200303222197. The reversal of 1200303222144 is 4412223030021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1200303222144² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10360699 + ... + 10475909.

It is an arithmetic number, because the mean of its divisors is an integer number (26837771310).

Almost surely, 2^{1200303222144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200303222144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717617363840).

1200303222144 is an abundant number, since it is smaller than the sum of its proper divisors (2234931505536).

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

1200303222144 is a wasteful number, since it uses less digits than its factorization.

1200303222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117328 (or 117316 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1200303222144 its reverse (4412223030021), we get a palindrome (5612526252165).

The spelling of 1200303222144 in words is "one trillion, two hundred billion, three hundred three million, two hundred twenty-two thousand, one hundred forty-four".