1220043442364 has 36 divisors (see below), whose sum is σ = 2284230965184. Its totient is φ = 569998617408.

The previous prime is 1220043442337. The next prime is 1220043442369. The reversal of 1220043442364 is 4632443400221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220043442369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5681612 + ... + 5892435.

It is an arithmetic number, because the mean of its divisors is an integer number (63450860144).

Almost surely, 2^{1220043442364} is an apocalyptic number.

It is an amenable number.

1220043442364 is a deficient number, since it is larger than the sum of its proper divisors (1064187522820).

1220043442364 is a wasteful number, since it uses less digits than its factorization.

1220043442364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574162 (or 11574141 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 1220043442364 its reverse (4632443400221), we get a palindrome (5852486842585).

The spelling of 1220043442364 in words is "one trillion, two hundred twenty billion, forty-three million, four hundred forty-two thousand, three hundred sixty-four".