2021321100002 has 16 divisors (see below), whose sum is σ = 3070635091200. Its totient is φ = 997778352480.

The previous prime is 2021321099977. The next prime is 2021321100031. The reversal of 2021321100002 is 2000011231202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021321100002.

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, 1223699 + ... + 2353737.

It is an arithmetic number, because the mean of its divisors is an integer number (191914693200).

Almost surely, 2^{2021321100002} is an apocalyptic number.

2021321100002 is a deficient number, since it is larger than the sum of its proper divisors (1049313991198).

2021321100002 is a wasteful number, since it uses less digits than its factorization.

2021321100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141441.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2021321100002 its reverse (2000011231202), we get a palindrome (4021332331204).

The spelling of 2021321100002 in words is "two trillion, twenty-one billion, three hundred twenty-one million, one hundred thousand, two".