10002121002002 has 24 divisors (see below), whose sum is σ = 16509321237360. Its totient is φ = 4531853442600.

The previous prime is 10002121001987. The next prime is 10002121002113. The reversal of 10002121002002 is 20020012120001.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 248764124 + ... + 248804327.

It is an arithmetic number, because the mean of its divisors is an integer number (687888384890).

Almost surely, 2^{10002121002002} is an apocalyptic number.

10002121002002 is a deficient number, since it is larger than the sum of its proper divisors (6507200235358).

10002121002002 is a wasteful number, since it uses less digits than its factorization.

10002121002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497568518 (or 497568495 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10002121002002 its reverse (20020012120001), we get a palindrome (30022133122003).

The spelling of 10002121002002 in words is "ten trillion, two billion, one hundred twenty-one million, two thousand, two".