21000110110202 has 8 divisors (see below), whose sum is σ = 32586377757300. Its totient is φ = 10137984191104.

The previous prime is 21000110110181. The next prime is 21000110110229. The reversal of 21000110110202 is 20201101100012.

It can be written as a sum of positive squares in 2 ways, for example, as 20972543817241 + 27566292961 = 4579579^2 + 166031^2 .

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, 181035431927 + ... + 181035432042.

Almost surely, 2^{21000110110202} is an apocalyptic number.

21000110110202 is a deficient number, since it is larger than the sum of its proper divisors (11586267647098).

21000110110202 is a wasteful number, since it uses less digits than its factorization.

21000110110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362070864000.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000110110202 its reverse (20201101100012), we get a palindrome (41201211210214).

The spelling of 21000110110202 in words is "twenty-one trillion, one hundred ten million, one hundred ten thousand, two hundred two".