21211130022 has 16 divisors (see below), whose sum is σ = 42599761920. Its totient is φ = 7040793032.

The previous prime is 21211130021. The next prime is 21211130047. The reversal of 21211130022 is 22003111212.

It is a junction number, because it is equal to n+sod(n) for n = 21211129983 and 21211130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21211130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7394358 + ... + 7397225.

It is an arithmetic number, because the mean of its divisors is an integer number (2662485120).

Almost surely, 2^21211130022 is an apocalyptic number.

21211130022 is an abundant number, since it is smaller than the sum of its proper divisors (21388631898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21211130022 is a wasteful number, since it uses less digits than its factorization.

21211130022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791827.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21211130022 its reverse (22003111212), we get a palindrome (43214241234).

The spelling of 21211130022 in words is "twenty-one billion, two hundred eleven million, one hundred thirty thousand, twenty-two".