100121201122121 has 8 divisors (see below), whose sum is σ = 100701905356800. Its totient is φ = 99541272714048.

The previous prime is 100121201122087. The next prime is 100121201122177. The reversal of 100121201122121 is 121221102121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100121201122121 - 2³⁰ = 100120127380297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100121201122121.

It is not an unprimeable number, because it can be changed into a prime (100121201124121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193697801 + ... + 194214006.

It is an arithmetic number, because the mean of its divisors is an integer number (12587738169600).

Almost surely, 2^{100121201122121} is an apocalyptic number.

It is an amenable number.

100121201122121 is a deficient number, since it is larger than the sum of its proper divisors (580704234679).

100121201122121 is a wasteful number, since it uses less digits than its factorization.

100121201122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387913303.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100121201122121 its reverse (121221102121001), we get a palindrome (221342303243122).

The spelling of 100121201122121 in words is "one hundred trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-one".