21122022022111 has 16 divisors (see below), whose sum is σ = 21361058117280. Its totient is φ = 20883768860160.

The previous prime is 21122022022063. The next prime is 21122022022121. The reversal of 21122022022111 is 11122022022112.

It is a cyclic number.

It is not a de Polignac number, because 21122022022111 - 2⁷ = 21122022021983 is a prime.

It is a super-2 number, since 2×21122022022111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122022022121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436300075 + ... + 436348483.

It is an arithmetic number, because the mean of its divisors is an integer number (1335066132330).

Almost surely, 2^{21122022022111} is an apocalyptic number.

21122022022111 is a deficient number, since it is larger than the sum of its proper divisors (239036095169).

21122022022111 is a wasteful number, since it uses less digits than its factorization.

21122022022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56394.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21122022022111 its reverse (11122022022112), we get a palindrome (32244044044223).

Subtracting from 21122022022111 its reverse (11122022022112), we obtain a palindrome (9999999999999).

The spelling of 21122022022111 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, twenty-two thousand, one hundred eleven".