21122011002211 has 16 divisors (see below), whose sum is σ = 24357210856128. Its totient is φ = 17941308134400.

The previous prime is 21122011002203. The next prime is 21122011002227. The reversal of 21122011002211 is 11220011022112.

It is not a de Polignac number, because 21122011002211 - 2³ = 21122011002203 is a prime.

It is a super-2 number, since 2×21122011002211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122011002011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381601 + ... + 6922141.

It is an arithmetic number, because the mean of its divisors is an integer number (1522325678508).

Almost surely, 2^{21122011002211} is an apocalyptic number.

21122011002211 is a deficient number, since it is larger than the sum of its proper divisors (3235199853917).

21122011002211 is a wasteful number, since it uses less digits than its factorization.

21122011002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546542.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21122011002211 its reverse (11220011022112), we get a palindrome (32342022024323).

The spelling of 21122011002211 in words is "twenty-one trillion, one hundred twenty-two billion, eleven million, two thousand, two hundred eleven".