21001000110022 has 16 divisors (see below), whose sum is σ = 32166115387632. Its totient is φ = 10281061537920.

The previous prime is 21001000110007. The next prime is 21001000110029. The reversal of 21001000110022 is 22001100010012.

It is a super-2 number, since 2×21001000110022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21001000109990 and 21001000110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001000110029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524952504 + ... + 524992507.

It is an arithmetic number, because the mean of its divisors is an integer number (2010382211727).

Almost surely, 2^{21001000110022} is an apocalyptic number.

21001000110022 is a deficient number, since it is larger than the sum of its proper divisors (11165115277610).

21001000110022 is a wasteful number, since it uses less digits than its factorization.

21001000110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049945223.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21001000110022 its reverse (22001100010012), we get a palindrome (43002100120034).

The spelling of 21001000110022 in words is "twenty-one trillion, one billion, one hundred ten thousand, twenty-two".