1002201121111 has 8 divisors (see below), whose sum is σ = 1002940806224. Its totient is φ = 1001461631040.

The previous prime is 1002201121099. The next prime is 1002201121127. The reversal of 1002201121111 is 1111211022001.

It is a happy number.

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 1002201121111 - 2¹¹ = 1002201119063 is a prime.

It is a super-2 number, since 2×1002201121111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002201121091 and 1002201121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002201128111) 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 7 ways as a sum of consecutive naturals, for example, 11169256 + ... + 11258626.

It is an arithmetic number, because the mean of its divisors is an integer number (125367600778).

Almost surely, 2^{1002201121111} is an apocalyptic number.

1002201121111 is a deficient number, since it is larger than the sum of its proper divisors (739685113).

1002201121111 is an equidigital number, since it uses as much as digits as its factorization.

1002201121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97521.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002201121111 its reverse (1111211022001), we get a palindrome (2113412143112).

The spelling of 1002201121111 in words is "one trillion, two billion, two hundred one million, one hundred twenty-one thousand, one hundred eleven".