100121203333312 has 56 divisors (see below), whose sum is σ = 227289709829120. Its totient is φ = 42865788176640.

The previous prime is 100121203333243. The next prime is 100121203333337. The reversal of 100121203333312 is 213333302121001.

It is a tau number, because it is divible by the number of its divisors (56).

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 7 ways as a sum of consecutive naturals, for example, 112313262 + ... + 113201197.

Almost surely, 2^{100121203333312} is an apocalyptic number.

It is an amenable number.

100121203333312 is an abundant number, since it is smaller than the sum of its proper divisors (127168506495808).

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

100121203333312 is an equidigital number, since it uses as much as digits as its factorization.

100121203333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225515469 (or 225515459 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 100121203333312 its reverse (213333302121001), we get a palindrome (313454505454313).

The spelling of 100121203333312 in words is "one hundred trillion, one hundred twenty-one billion, two hundred three million, three hundred thirty-three thousand, three hundred twelve".