21002222110011 has 8 divisors (see below), whose sum is σ = 28003101131280. Its totient is φ = 14001412247712.

The previous prime is 21002222110003. The next prime is 21002222110039. The reversal of 21002222110011 is 11001122220012.

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

It is not a de Polignac number, because 21002222110011 - 2³ = 21002222110003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21002222110091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16576956 + ... + 17798873.

It is an arithmetic number, because the mean of its divisors is an integer number (3500387641410).

Almost surely, 2^{21002222110011} is an apocalyptic number.

21002222110011 is a deficient number, since it is larger than the sum of its proper divisors (7000879021269).

21002222110011 is a wasteful number, since it uses less digits than its factorization.

21002222110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34579485.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21002222110011 its reverse (11001122220012), we get a palindrome (32003344330023).

The spelling of 21002222110011 in words is "twenty-one trillion, two billion, two hundred twenty-two million, one hundred ten thousand, eleven".