2002022121 has 8 divisors (see below), whose sum is σ = 2912032224. Its totient is φ = 1213346720.

The previous prime is 2002022117. The next prime is 2002022147. The reversal of 2002022121 is 1212202002.

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 2002022121 - 2² = 2002022117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002022097 and 2002022106.

It is not an unprimeable number, because it can be changed into a prime (2002022621) 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, 30333636 + ... + 30333701.

It is an arithmetic number, because the mean of its divisors is an integer number (364004028).

Almost surely, 2^2002022121 is an apocalyptic number.

It is an amenable number.

2002022121 is a deficient number, since it is larger than the sum of its proper divisors (910010103).

2002022121 is a wasteful number, since it uses less digits than its factorization.

2002022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60667351.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2002022121 is about 44743.9618384425. The cubic root of 2002022121 is about 1260.3455256723.

Adding to 2002022121 its reverse (1212202002), we get a palindrome (3214224123).

The spelling of 2002022121 in words is "two billion, two million, twenty-two thousand, one hundred twenty-one".