21202002002002 has 8 divisors (see below), whose sum is σ = 31809532067712. Its totient is φ = 10598824646100.

The previous prime is 21202002001963. The next prime is 21202002002017. The reversal of 21202002002002 is 20020020020212.

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

21202002002002 is a modest number, since divided by 2002002 gives 21202 as remainder.

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, 1088165274 + ... + 1088184757.

It is an arithmetic number, because the mean of its divisors is an integer number (3976191508464).

Almost surely, 2^{21202002002002} is an apocalyptic number.

21202002002002 is a deficient number, since it is larger than the sum of its proper divisors (10607530065710).

21202002002002 is a wasteful number, since it uses less digits than its factorization.

21202002002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176354904.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 21202002002002 its reverse (20020020020212), we get a palindrome (41222022022214).

The spelling of 21202002002002 in words is "twenty-one trillion, two hundred two billion, two million, two thousand, two".