1220021011163 has 2 divisors, whose sum is σ = 1220021011164. Its totient is φ = 1220021011162.

The previous prime is 1220021011103. The next prime is 1220021011169. The reversal of 1220021011163 is 3611101200221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220021011163 - 2²⁴ = 1220004233947 is a prime.

It is a super-2 number, since 2×1220021011163² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1220021011169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010505581 + 610010505582.

It is an arithmetic number, because the mean of its divisors is an integer number (610010505582).

Almost surely, 2^{1220021011163} is an apocalyptic number.

1220021011163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220021011163 is an equidigital number, since it uses as much as digits as its factorization.

1220021011163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1220021011163 its reverse (3611101200221), we get a palindrome (4831122211384).

The spelling of 1220021011163 in words is "one trillion, two hundred twenty billion, twenty-one million, eleven thousand, one hundred sixty-three".