21022110110001 has 256 divisors, whose sum is σ = 40260046159872. Its totient is φ = 9389766758400.

The previous prime is 21022110109963. The next prime is 21022110110051. The reversal of 21022110110001 is 10001101122012.

It is not a de Polignac number, because 21022110110001 - 2⁶ = 21022110109937 is a prime.

It is a super-2 number, since 2×21022110110001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21022110110051) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2794374826 + ... + 2794382348.

It is an arithmetic number, because the mean of its divisors is an integer number (157265805312).

Almost surely, 2^{21022110110001} is an apocalyptic number.

21022110110001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21022110110001 is a deficient number, since it is larger than the sum of its proper divisors (19237936049871).

21022110110001 is a wasteful number, since it uses less digits than its factorization.

21022110110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132.

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

Adding to 21022110110001 its reverse (10001101122012), we get a palindrome (31023211232013).

The spelling of 21022110110001 in words is "twenty-one trillion, twenty-two billion, one hundred ten million, one hundred ten thousand, one".