1220543541352 has 16 divisors (see below), whose sum is σ = 2292078277440. Its totient is φ = 609322667376.

The previous prime is 1220543541319. The next prime is 1220543541359. The reversal of 1220543541352 is 2531453450221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1220543541359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118632448 + ... + 118642735.

It is an arithmetic number, because the mean of its divisors is an integer number (143254892340).

Almost surely, 2^{1220543541352} is an apocalyptic number.

It is an amenable number.

1220543541352 is a deficient number, since it is larger than the sum of its proper divisors (1071534736088).

1220543541352 is a wasteful number, since it uses less digits than its factorization.

1220543541352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237275832 (or 237275828 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1220543541352 its reverse (2531453450221), we get a palindrome (3751996991573).

The spelling of 1220543541352 in words is "one trillion, two hundred twenty billion, five hundred forty-three million, five hundred forty-one thousand, three hundred fifty-two".