2121020002 has 8 divisors (see below), whose sum is σ = 3181738176. Its totient is φ = 1060440612.

The previous prime is 2121019997. The next prime is 2121020039. The reversal of 2121020002 is 2000201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22123 + ... + 68785.

It is an arithmetic number, because the mean of its divisors is an integer number (397717272).

Almost surely, 2^2121020002 is an apocalyptic number.

2121020002 is a deficient number, since it is larger than the sum of its proper divisors (1060718174).

2121020002 is a wasteful number, since it uses less digits than its factorization.

2121020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69392.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2121020002 is about 46054.5329147957. The cubic root of 2121020002 is about 1284.8376509152.

Adding to 2121020002 its reverse (2000201212), we get a palindrome (4121221214).

The spelling of 2121020002 in words is "two billion, one hundred twenty-one million, twenty thousand, two".