21101110210222 has 8 divisors (see below), whose sum is σ = 36173331788976. Its totient is φ = 9043332947232.

The previous prime is 21101110210121. The next prime is 21101110210267. The reversal of 21101110210222 is 22201201110112.

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 = 21101110210196 and 21101110210205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753611078923 + ... + 753611078950.

It is an arithmetic number, because the mean of its divisors is an integer number (4521666473622).

Almost surely, 2^{21101110210222} is an apocalyptic number.

21101110210222 is a deficient number, since it is larger than the sum of its proper divisors (15072221578754).

21101110210222 is a wasteful number, since it uses less digits than its factorization.

21101110210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507222157882.

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

Adding to 21101110210222 its reverse (22201201110112), we get a palindrome (43302311320334).

The spelling of 21101110210222 in words is "twenty-one trillion, one hundred one billion, one hundred ten million, two hundred ten thousand, two hundred twenty-two".