21122230322100 has 36 divisors (see below), whose sum is σ = 61113653066144. Its totient is φ = 5632594752480.

The previous prime is 21122230322071. The next prime is 21122230322159. The reversal of 21122230322100 is 122303222112.

It is a super-2 number, since 2×21122230322100² (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 11 ways as a sum of consecutive naturals, for example, 35203716904 + ... + 35203717503.

Almost surely, 2^{21122230322100} is an apocalyptic number.

21122230322100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122230322100 is an abundant number, since it is smaller than the sum of its proper divisors (39991422744044).

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

21122230322100 is a wasteful number, since it uses less digits than its factorization.

21122230322100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70407434424 (or 70407434417 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21122230322100 its reverse (122303222112), we get a palindrome (21244533544212).

The spelling of 21122230322100 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred thirty million, three hundred twenty-two thousand, one hundred".