100121211332200 has 48 divisors (see below), whose sum is σ = 238459421643660. Its totient is φ = 39071692224000.

The previous prime is 100121211332189. The next prime is 100121211332221. The reversal of 100121211332200 is 2233112121001.

It can be written as a sum of positive squares in 6 ways, for example, as 5984373904804 + 94136837427396 = 2446298^2 + 9702414^2 .

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, 6104943711 + ... + 6104960110.

Almost surely, 2^{100121211332200} is an apocalyptic number.

100121211332200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121211332200 is an abundant number, since it is smaller than the sum of its proper divisors (138338210311460).

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

100121211332200 is a wasteful number, since it uses less digits than its factorization.

100121211332200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12209903878 (or 12209903869 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 100121211332200 its reverse (2233112121001), we get a palindrome (102354323453201).

The spelling of 100121211332200 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, three hundred thirty-two thousand, two hundred".