21122323230100 has 36 divisors (see below), whose sum is σ = 45839318158368. Its totient is φ = 8448214684000.

The previous prime is 21122323230083. The next prime is 21122323230119. The reversal of 21122323230100 is 103232322112.

It is a congruent number.

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, 7743586 + ... + 10109785.

It is an arithmetic number, because the mean of its divisors is an integer number (1273314393288).

Almost surely, 2^{21122323230100} is an apocalyptic number.

21122323230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122323230100 is an abundant number, since it is smaller than the sum of its proper divisors (24716994928268).

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

21122323230100 is a wasteful number, since it uses less digits than its factorization.

21122323230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17865216 (or 17865209 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21122323230100 its reverse (103232322112), we get a palindrome (21225555552212).

The spelling of 21122323230100 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred twenty-three million, two hundred thirty thousand, one hundred".