21022000010111 has 4 divisors (see below), whose sum is σ = 21022229642112. Its totient is φ = 21021770378112.

The previous prime is 21022000010093. The next prime is 21022000010119. The reversal of 21022000010111 is 11101000022012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21022000010111 - 2³⁸ = 20747122103167 is a prime.

It is a super-6 number, since 6×21022000010111⁶ (a number of 81 digits) contains 666666 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21022000010092 and 21022000010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022000010119) 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, 114678626 + ... + 114861791.

It is an arithmetic number, because the mean of its divisors is an integer number (5255557410528).

Almost surely, 2^{21022000010111} is an apocalyptic number.

21022000010111 is a deficient number, since it is larger than the sum of its proper divisors (229632001).

21022000010111 is an equidigital number, since it uses as much as digits as its factorization.

21022000010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229632000.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21022000010111 its reverse (11101000022012), we get a palindrome (32123000032123).

The spelling of 21022000010111 in words is "twenty-one trillion, twenty-two billion, ten thousand, one hundred eleven".