100121201011001 has 8 divisors (see below), whose sum is σ = 102349852700160. Its totient is φ = 97896649879008.

The previous prime is 100121201010991. The next prime is 100121201011031. The reversal of 100121201011001 is 100110102121001.

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 100121201011001 - 2¹⁸ = 100121200748857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121201011031) 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, 1025089916 + ... + 1025187581.

It is an arithmetic number, because the mean of its divisors is an integer number (12793731587520).

Almost surely, 2^{100121201011001} is an apocalyptic number.

It is an amenable number.

100121201011001 is a deficient number, since it is larger than the sum of its proper divisors (2228651689159).

100121201011001 is a wasteful number, since it uses less digits than its factorization.

100121201011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050278583.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100121201011001 its reverse (100110102121001), we get a palindrome (200231303132002).

The spelling of 100121201011001 in words is "one hundred trillion, one hundred twenty-one billion, two hundred one million, eleven thousand, one".