1100220022001 has 4 divisors (see below), whose sum is σ = 1101503826852. Its totient is φ = 1098936217152.

The previous prime is 1100220021949. The next prime is 1100220022007. The reversal of 1100220022001 is 1002200220011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 965935152400 + 134284869601 = 982820^2 + 366449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100220022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100220022007) 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 3 ways as a sum of consecutive naturals, for example, 641901140 + ... + 641902853.

It is an arithmetic number, because the mean of its divisors is an integer number (275375956713).

Almost surely, 2^{1100220022001} is an apocalyptic number.

It is an amenable number.

1100220022001 is a deficient number, since it is larger than the sum of its proper divisors (1283804851).

1100220022001 is an equidigital number, since it uses as much as digits as its factorization.

1100220022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283804850.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1100220022001 its reverse (1002200220011), we get a palindrome (2102420242012).

The spelling of 1100220022001 in words is "one trillion, one hundred billion, two hundred twenty million, twenty-two thousand, one".