21001110210022 has 8 divisors (see below), whose sum is σ = 31505961213936. Its totient is φ = 10499123138712.

The previous prime is 21001110209993. The next prime is 21001110210029. The reversal of 21001110210022 is 22001201110012.

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 = 21001110209984 and 21001110210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001110210029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715964818 + ... + 715994149.

It is an arithmetic number, because the mean of its divisors is an integer number (3938245151742).

Almost surely, 2^{21001110210022} is an apocalyptic number.

21001110210022 is a deficient number, since it is larger than the sum of its proper divisors (10504851003914).

21001110210022 is a wasteful number, since it uses less digits than its factorization.

21001110210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431966302.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21001110210022 its reverse (22001201110012), we get a palindrome (43002311320034).

The spelling of 21001110210022 in words is "twenty-one trillion, one billion, one hundred ten million, two hundred ten thousand, twenty-two".