1002102221121 has 4 divisors (see below), whose sum is σ = 1336136294832. Its totient is φ = 668068147412.

The previous prime is 1002102221111. The next prime is 1002102221189. The reversal of 1002102221121 is 1211222012001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1002102221121 - 2⁷ = 1002102220993 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002102221121.

It is not an unprimeable number, because it can be changed into a prime (1002102221111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 167017036851 + ... + 167017036856.

It is an arithmetic number, because the mean of its divisors is an integer number (334034073708).

Almost surely, 2^{1002102221121} is an apocalyptic number.

It is an amenable number.

1002102221121 is a deficient number, since it is larger than the sum of its proper divisors (334034073711).

1002102221121 is an equidigital number, since it uses as much as digits as its factorization.

1002102221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334034073710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1002102221121 its reverse (1211222012001), we get a palindrome (2213324233122).

The spelling of 1002102221121 in words is "one trillion, two billion, one hundred two million, two hundred twenty-one thousand, one hundred twenty-one".