2121100030002 has 16 divisors (see below), whose sum is σ = 4265899503840. Its totient is φ = 703083436032.

The previous prime is 2121100029989. The next prime is 2121100030013. The reversal of 2121100030002 is 2000300011212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121100030002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987475663 + ... + 987477810.

It is an arithmetic number, because the mean of its divisors is an integer number (266618718990).

Almost surely, 2^{2121100030002} is an apocalyptic number.

2121100030002 is an abundant number, since it is smaller than the sum of its proper divisors (2144799473838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121100030002 is a wasteful number, since it uses less digits than its factorization.

2121100030002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974953657.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2121100030002 its reverse (2000300011212), we get a palindrome (4121400041214).

The spelling of 2121100030002 in words is "two trillion, one hundred twenty-one billion, one hundred million, thirty thousand, two".