21110201010002 has 16 divisors (see below), whose sum is σ = 34744510808280. Its totient is φ = 9559336305792.

The previous prime is 21110201009981. The next prime is 21110201010077. The reversal of 21110201010002 is 20001010201112.

It can be written as a sum of positive squares in 4 ways, for example, as 11671659137161 + 9438541872841 = 3416381^2 + 3072221^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7659723227 + ... + 7659725982.

Almost surely, 2^{21110201010002} is an apocalyptic number.

21110201010002 is a deficient number, since it is larger than the sum of its proper divisors (13634309798278).

21110201010002 is a wasteful number, since it uses less digits than its factorization.

21110201010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15319449277.

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

Adding to 21110201010002 its reverse (20001010201112), we get a palindrome (41111211211114).

The spelling of 21110201010002 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, ten thousand, two".