21110300222 has 32 divisors (see below), whose sum is σ = 36718621920. Its totient is φ = 8995962880.

The previous prime is 21110300221. The next prime is 21110300231. The reversal of 21110300222 is 22200301112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21110300197 and 21110300206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110300221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13697 + ... + 205932.

It is an arithmetic number, because the mean of its divisors is an integer number (1147456935).

Almost surely, 2^21110300222 is an apocalyptic number.

21110300222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21110300222 is a deficient number, since it is larger than the sum of its proper divisors (15608321698).

21110300222 is a wasteful number, since it uses less digits than its factorization.

21110300222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219916.

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

Adding to 21110300222 its reverse (22200301112), we get a palindrome (43310601334).

The spelling of 21110300222 in words is "twenty-one billion, one hundred ten million, three hundred thousand, two hundred twenty-two".