21111011120122 has 24 divisors (see below), whose sum is σ = 39779425915488. Its totient is φ = 8225069266920.

The previous prime is 21111011120099. The next prime is 21111011120131. The reversal of 21111011120122 is 22102111011112.

It is a super-2 number, since 2×21111011120122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21111011120096 and 21111011120105.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6231111388 + ... + 6231114775.

It is an arithmetic number, because the mean of its divisors is an integer number (1657476079812).

Almost surely, 2^{21111011120122} is an apocalyptic number.

21111011120122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21111011120122 is a deficient number, since it is larger than the sum of its proper divisors (18668414795366).

21111011120122 is a wasteful number, since it uses less digits than its factorization.

21111011120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462226194 (or 12462226183 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 21111011120122 its reverse (22102111011112), we get a palindrome (43213122131234).

The spelling of 21111011120122 in words is "twenty-one trillion, one hundred eleven billion, eleven million, one hundred twenty thousand, one hundred twenty-two".