21122201011122 has 48 divisors (see below), whose sum is σ = 45778351627008. Its totient is φ = 7038644408640.

The previous prime is 21122201011117. The next prime is 21122201011139. The reversal of 21122201011122 is 22111010222112.

It is a super-2 number, since 2×21122201011122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21122201011095 and 21122201011104.

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 23 ways as a sum of consecutive naturals, for example, 1464473203 + ... + 1464487625.

It is an arithmetic number, because the mean of its divisors is an integer number (953715658896).

Almost surely, 2^{21122201011122} is an apocalyptic number.

21122201011122 is an abundant number, since it is smaller than the sum of its proper divisors (24656150615886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122201011122 is a wasteful number, since it uses less digits than its factorization.

21122201011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32935 (or 32932 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21122201011122 its reverse (22111010222112), we get a palindrome (43233211233234).

The spelling of 21122201011122 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred one million, eleven thousand, one hundred twenty-two".