1220133211044 has 192 divisors, whose sum is σ = 3180028723200. Its totient is φ = 360994320000.

The previous prime is 1220133211043. The next prime is 1220133211049. The reversal of 1220133211044 is 4401123310221.

It is not an unprimeable number, because it can be changed into a prime (1220133211043) 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, 1327674417 + ... + 1327675335.

It is an arithmetic number, because the mean of its divisors is an integer number (16562649600).

Almost surely, 2^{1220133211044} 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 1220133211044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590014361600).

1220133211044 is an abundant number, since it is smaller than the sum of its proper divisors (1959895512156).

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

1220133211044 is a wasteful number, since it uses less digits than its factorization.

1220133211044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1972 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1220133211044 its reverse (4401123310221), we get a palindrome (5621256521265).

The spelling of 1220133211044 in words is "one trillion, two hundred twenty billion, one hundred thirty-three million, two hundred eleven thousand, forty-four".