2002102212121 has 8 divisors (see below), whose sum is σ = 2184181533504. Its totient is φ = 1820034562320.

The previous prime is 2002102212101. The next prime is 2002102212203. The reversal of 2002102212121 is 1212122012002.

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 2002102212121 - 2¹³ = 2002102203929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002102212095 and 2002102212104.

It is not an unprimeable number, because it can be changed into a prime (2002102212101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557285 + ... + 3247138.

It is an arithmetic number, because the mean of its divisors is an integer number (273022691688).

Almost surely, 2^{2002102212121} is an apocalyptic number.

It is an amenable number.

2002102212121 is a deficient number, since it is larger than the sum of its proper divisors (182079321383).

2002102212121 is a wasteful number, since it uses less digits than its factorization.

2002102212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835791.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2002102212121 its reverse (1212122012002), we get a palindrome (3214224224123).

The spelling of 2002102212121 in words is "two trillion, two billion, one hundred two million, two hundred twelve thousand, one hundred twenty-one".