121221432102300 has 72 divisors (see below), whose sum is σ = 350749883237376. Its totient is φ = 32324252276160.

The previous prime is 121221432102241. The next prime is 121221432102317. The reversal of 121221432102300 is 3201234122121.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2495484 + ... + 15769283.

Almost surely, 2^{121221432102300} is an apocalyptic number.

121221432102300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121221432102300 is an abundant number, since it is smaller than the sum of its proper divisors (229528451135076).

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

121221432102300 is a wasteful number, since it uses less digits than its factorization.

121221432102300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18286907 (or 18286900 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121221432102300 its reverse (3201234122121), we get a palindrome (124422666224421).

The spelling of 121221432102300 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, four hundred thirty-two million, one hundred two thousand, three hundred".