2002202110121 has 8 divisors (see below), whose sum is σ = 2120046258600. Its totient is φ = 1884365467648.

The previous prime is 2002202110057. The next prime is 2002202110123. The reversal of 2002202110121 is 1210112022002.

It can be written as a sum of positive squares in 4 ways, for example, as 705245564521 + 1296956545600 = 839789^2 + 1138840^2 .

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 2002202110121 - 2⁶ = 2002202110057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002202110096 and 2002202110105.

It is not an unprimeable number, because it can be changed into a prime (2002202110123) 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 7 ways as a sum of consecutive naturals, for example, 1322636 + ... + 2398701.

It is an arithmetic number, because the mean of its divisors is an integer number (265005782325).

Almost surely, 2^{2002202110121} is an apocalyptic number.

It is an amenable number.

2002202110121 is a deficient number, since it is larger than the sum of its proper divisors (117844148479).

2002202110121 is a wasteful number, since it uses less digits than its factorization.

2002202110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2002202110121 its reverse (1210112022002), we get a palindrome (3212314132123).

The spelling of 2002202110121 in words is "two trillion, two billion, two hundred two million, one hundred ten thousand, one hundred twenty-one".