1002220110121 has 4 divisors (see below), whose sum is σ = 1003614019200. Its totient is φ = 1000826201044.

The previous prime is 1002220110077. The next prime is 1002220110149. The reversal of 1002220110121 is 1210110222001.

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 1002220110121 - 2⁹ = 1002220109609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002220117121) 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, 696953461 + ... + 696954898.

It is an arithmetic number, because the mean of its divisors is an integer number (250903504800).

Almost surely, 2^{1002220110121} is an apocalyptic number.

It is an amenable number.

1002220110121 is a deficient number, since it is larger than the sum of its proper divisors (1393909079).

1002220110121 is an equidigital number, since it uses as much as digits as its factorization.

1002220110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393909078.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002220110121 its reverse (1210110222001), we get a palindrome (2212330332122).

The spelling of 1002220110121 in words is "one trillion, two billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-one".