21112000021222 has 8 divisors (see below), whose sum is σ = 34546909125672. Its totient is φ = 9596363646000.

The previous prime is 21112000021193. The next prime is 21112000021261. The reversal of 21112000021222 is 22212000021112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21112000021196 and 21112000021205.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 479818182279 + ... + 479818182322.

It is an arithmetic number, because the mean of its divisors is an integer number (4318363640709).

Almost surely, 2^{21112000021222} is an apocalyptic number.

21112000021222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112000021222 is a deficient number, since it is larger than the sum of its proper divisors (13434909104450).

21112000021222 is a wasteful number, since it uses less digits than its factorization.

21112000021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959636364614.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21112000021222 its reverse (22212000021112), we get a palindrome (43324000042334).

The spelling of 21112000021222 in words is "twenty-one trillion, one hundred twelve billion, twenty-one thousand, two hundred twenty-two".