21122022022112 has 288 divisors, whose sum is σ = 47470686367104. Its totient is φ = 9237888000000.

The previous prime is 21122022022063. The next prime is 21122022022121.

21122022022112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21122022022112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4345198562 + ... + 4345203422.

It is an arithmetic number, because the mean of its divisors is an integer number (164828772108).

Almost surely, 2^{21122022022112} is an apocalyptic number.

21122022022112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21122022022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23735343183552).

21122022022112 is an abundant number, since it is smaller than the sum of its proper divisors (26348664344992).

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

21122022022112 is a wasteful number, since it uses less digits than its factorization.

21122022022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306 (or 5287 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 2112202 and 2022112, that added together give a palindrome (4134314).

The spelling of 21122022022112 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, twenty-two thousand, one hundred twelve".