1220134333044 has 192 divisors, whose sum is σ = 3413493135360. Its totient is φ = 334842900480.

The previous prime is 1220134333043. The next prime is 1220134333091. The reversal of 1220134333044 is 4403334310221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220134333043) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 110343964 + ... + 110355020.

It is an arithmetic number, because the mean of its divisors is an integer number (17778610080).

Almost surely, 2^{1220134333044} 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 1220134333044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706746567680).

1220134333044 is an abundant number, since it is smaller than the sum of its proper divisors (2193358802316).

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

1220134333044 is a wasteful number, since it uses less digits than its factorization.

1220134333044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13030 (or 13028 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1220134333044 its reverse (4403334310221), we get a palindrome (5623468643265).

The spelling of 1220134333044 in words is "one trillion, two hundred twenty billion, one hundred thirty-four million, three hundred thirty-three thousand, forty-four".