1220127642163 has 8 divisors (see below), whose sum is σ = 1229770649088. Its totient is φ = 1210485193344.

The previous prime is 1220127642143. The next prime is 1220127642187. The reversal of 1220127642163 is 3612467210221.

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 1220127642163 - 2⁹ = 1220127641651 is a prime.

It is a super-2 number, since 2×1220127642163² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220127642113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4992795 + ... + 5231467.

It is an arithmetic number, because the mean of its divisors is an integer number (153721331136).

Almost surely, 2^{1220127642163} is an apocalyptic number.

1220127642163 is a deficient number, since it is larger than the sum of its proper divisors (9643006925).

1220127642163 is a wasteful number, since it uses less digits than its factorization.

1220127642163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279053.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 1220127642163 in words is "one trillion, two hundred twenty billion, one hundred twenty-seven million, six hundred forty-two thousand, one hundred sixty-three".