2002211121023 has 4 divisors (see below), whose sum is σ = 2002345629840. Its totient is φ = 2002076612208.

The previous prime is 2002211121017. The next prime is 2002211121047. The reversal of 2002211121023 is 3201211122002.

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

It is a cyclic number.

It is not a de Polignac number, because 2002211121023 - 2¹⁰ = 2002211119999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002211120992 and 2002211121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002211141023) 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, 67232078 + ... + 67261851.

It is an arithmetic number, because the mean of its divisors is an integer number (500586407460).

Almost surely, 2^{2002211121023} is an apocalyptic number.

2002211121023 is a deficient number, since it is larger than the sum of its proper divisors (134508817).

2002211121023 is a wasteful number, since it uses less digits than its factorization.

2002211121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134508816.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2002211121023 its reverse (3201211122002), we get a palindrome (5203422243025).

The spelling of 2002211121023 in words is "two trillion, two billion, two hundred eleven million, one hundred twenty-one thousand, twenty-three".