21201112002002 has 8 divisors (see below), whose sum is σ = 31802185598976. Its totient is φ = 10600383469012.

The previous prime is 21201112001983. The next prime is 21201112002043. The reversal of 21201112002002 is 20020021110212.

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, 86112338 + ... + 86358189.

It is an arithmetic number, because the mean of its divisors is an integer number (3975273199872).

Almost surely, 2^{21201112002002} is an apocalyptic number.

21201112002002 is a deficient number, since it is larger than the sum of its proper divisors (10601073596974).

21201112002002 is a wasteful number, since it uses less digits than its factorization.

21201112002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172531992.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21201112002002 its reverse (20020021110212), we get a palindrome (41221133112214).

The spelling of 21201112002002 in words is "twenty-one trillion, two hundred one billion, one hundred twelve million, two thousand, two".