1220021201105 has 8 divisors (see below), whose sum is σ = 1673171932992. Its totient is φ = 836585966448.

The previous prime is 1220021201041. The next prime is 1220021201123. The reversal of 1220021201105 is 5011021200221.

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 1220021201105 - 2⁶ = 1220021201041 is a prime.

It is a super-2 number, since 2×1220021201105² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17428874267 + ... + 17428874336.

It is an arithmetic number, because the mean of its divisors is an integer number (209146491624).

Almost surely, 2^{1220021201105} is an apocalyptic number.

It is an amenable number.

1220021201105 is a deficient number, since it is larger than the sum of its proper divisors (453150731887).

1220021201105 is an equidigital number, since it uses as much as digits as its factorization.

1220021201105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34857748615.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1220021201105 its reverse (5011021200221), we get a palindrome (6231042401326).

The spelling of 1220021201105 in words is "one trillion, two hundred twenty billion, twenty-one million, two hundred one thousand, one hundred five".