21100130222 has 16 divisors (see below), whose sum is σ = 32906227200. Its totient is φ = 10136284920.

The previous prime is 21100130221. The next prime is 21100130257. The reversal of 21100130222 is 22203100112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21100130197 and 21100130206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100130221) 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, 1215572 + ... + 1232807.

It is an arithmetic number, because the mean of its divisors is an integer number (2056639200).

Almost surely, 2^21100130222 is an apocalyptic number.

21100130222 is a deficient number, since it is larger than the sum of its proper divisors (11806096978).

21100130222 is a wasteful number, since it uses less digits than its factorization.

21100130222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448551.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21100130222 its reverse (22203100112), we get a palindrome (43303230334).

The spelling of 21100130222 in words is "twenty-one billion, one hundred million, one hundred thirty thousand, two hundred twenty-two".