1220117716643 has 8 divisors (see below), whose sum is σ = 1394430959712. Its totient is φ = 1045807151616.

The previous prime is 1220117716591. The next prime is 1220117716723. The reversal of 1220117716643 is 3466177110221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220117716643 - 2¹⁸ = 1220117454499 is a prime.

It is a super-2 number, since 2×1220117716643² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220117716643.

It is not an unprimeable number, because it can be changed into a prime (1220117716843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426371 + ... + 1619267.

It is an arithmetic number, because the mean of its divisors is an integer number (174303869964).

Almost surely, 2^{1220117716643} is an apocalyptic number.

1220117716643 is a deficient number, since it is larger than the sum of its proper divisors (174313243069).

1220117716643 is a wasteful number, since it uses less digits than its factorization.

1220117716643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339021.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 1220117716643 in words is "one trillion, two hundred twenty billion, one hundred seventeen million, seven hundred sixteen thousand, six hundred forty-three".