121324224100 has 36 divisors (see below), whose sum is σ = 265603445604. Its totient is φ = 48100218880.

The previous prime is 121324224061. The next prime is 121324224121. The reversal of 121324224100 is 1422423121.

It can be written as a sum of positive squares in 6 ways, for example, as 56241071104 + 65083152996 = 237152^2 + 255114^2 .

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, 5357029 + ... + 5379628.

It is an arithmetic number, because the mean of its divisors is an integer number (7377873489).

Almost surely, 2^121324224100 is an apocalyptic number.

121324224100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121324224100 is an abundant number, since it is smaller than the sum of its proper divisors (144279221504).

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

121324224100 is a wasteful number, since it uses less digits than its factorization.

121324224100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10736784 (or 10736777 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121324224100 its reverse (1422423121), we get a palindrome (122746647221).

The spelling of 121324224100 in words is "one hundred twenty-one billion, three hundred twenty-four million, two hundred twenty-four thousand, one hundred".