21202212100011 has 8 divisors (see below), whose sum is σ = 28271330236560. Its totient is φ = 14133951015072.

The previous prime is 21202212100007. The next prime is 21202212100033. The reversal of 21202212100011 is 11000121220212.

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

It is not a de Polignac number, because 21202212100011 - 2² = 21202212100007 is a prime.

It is a super-3 number, since 3×21202212100011³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21202212170011) 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, 214205176 + ... + 214304133.

It is an arithmetic number, because the mean of its divisors is an integer number (3533916279570).

Almost surely, 2^{21202212100011} is an apocalyptic number.

21202212100011 is a deficient number, since it is larger than the sum of its proper divisors (7069118136549).

21202212100011 is a wasteful number, since it uses less digits than its factorization.

21202212100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428525805.

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

Adding to 21202212100011 its reverse (11000121220212), we get a palindrome (32202333320223).

The spelling of 21202212100011 in words is "twenty-one trillion, two hundred two billion, two hundred twelve million, one hundred thousand, eleven".