21200112211202 has 8 divisors (see below), whose sum is σ = 31800417292812. Its totient is φ = 10599973113600.

The previous prime is 21200112211177. The next prime is 21200112211253. The reversal of 21200112211202 is 20211221100212.

It can be written as a sum of positive squares in 2 ways, for example, as 20848072908961 + 352039302241 = 4565969^2 + 593329^2 .

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, 41176199 + ... + 41687882.

Almost surely, 2^{21200112211202} is an apocalyptic number.

21200112211202 is a deficient number, since it is larger than the sum of its proper divisors (10600305081610).

21200112211202 is a wasteful number, since it uses less digits than its factorization.

21200112211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82992004.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21200112211202 its reverse (20211221100212), we get a palindrome (41411333311414).

The spelling of 21200112211202 in words is "twenty-one trillion, two hundred billion, one hundred twelve million, two hundred eleven thousand, two hundred two".