21011010110022 has 8 divisors (see below), whose sum is σ = 42022020220056. Its totient is φ = 7003670036672.

The previous prime is 21011010110021. The next prime is 21011010110047. The reversal of 21011010110022 is 22001101011012.

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

21011010110022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011010110021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750917509163 + ... + 1750917509174.

It is an arithmetic number, because the mean of its divisors is an integer number (5252752527507).

Almost surely, 2^{21011010110022} is an apocalyptic number.

21011010110022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21011010110022 is a wasteful number, since it uses less digits than its factorization.

21011010110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501835018342.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21011010110022 its reverse (22001101011012), we get a palindrome (43012111121034).

The spelling of 21011010110022 in words is "twenty-one trillion, eleven billion, ten million, one hundred ten thousand, twenty-two".