1002222111101 has 4 divisors (see below), whose sum is σ = 1006598627100. Its totient is φ = 997845595104.

The previous prime is 1002222111091. The next prime is 1002222111181. The reversal of 1002222111101 is 1011112222001.

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 598201699225 + 404020411876 = 773435^2 + 635626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002222111101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002222111181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188257656 + ... + 2188258113.

It is an arithmetic number, because the mean of its divisors is an integer number (251649656775).

Almost surely, 2^{1002222111101} is an apocalyptic number.

It is an amenable number.

1002222111101 is a deficient number, since it is larger than the sum of its proper divisors (4376515999).

1002222111101 is an equidigital number, since it uses as much as digits as its factorization.

1002222111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376515998.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1002222111101 its reverse (1011112222001), we get a palindrome (2013334333102).

The spelling of 1002222111101 in words is "one trillion, two billion, two hundred twenty-two million, one hundred eleven thousand, one hundred one".