21112210010122 has 96 divisors (see below), whose sum is σ = 40313300189184. Its totient is φ = 8199834904800.

The previous prime is 21112210010093. The next prime is 21112210010123. The reversal of 21112210010122 is 22101001221112.

It is a super-2 number, since 2×21112210010122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112210010096 and 21112210010105.

It is not an unprimeable number, because it can be changed into a prime (21112210010123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 871564903 + ... + 871589125.

It is an arithmetic number, because the mean of its divisors is an integer number (419930210304).

Almost surely, 2^{21112210010122} is an apocalyptic number.

21112210010122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112210010122 is a deficient number, since it is larger than the sum of its proper divisors (19201090179062).

21112210010122 is a wasteful number, since it uses less digits than its factorization.

21112210010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26744 (or 26737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21112210010122 its reverse (22101001221112), we get a palindrome (43213211231234).

The spelling of 21112210010122 in words is "twenty-one trillion, one hundred twelve billion, two hundred ten million, ten thousand, one hundred twenty-two".