100121210011001 has 8 divisors (see below), whose sum is σ = 101036106276000. Its totient is φ = 99206820199872.

The previous prime is 100121210010989. The next prime is 100121210011037. The reversal of 100121210011001 is 100110012121001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121210011001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100121210017001) 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, 126216275 + ... + 127007048.

It is an arithmetic number, because the mean of its divisors is an integer number (12629513284500).

Almost surely, 2^{100121210011001} is an apocalyptic number.

It is an amenable number.

100121210011001 is a deficient number, since it is larger than the sum of its proper divisors (914896264999).

100121210011001 is a wasteful number, since it uses less digits than its factorization.

100121210011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253226935.

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

Adding to 100121210011001 its reverse (100110012121001), we get a palindrome (200231222132002).

It can be divided in two parts, 10012121001 and 1001, that multiplied together give a palindrome (10022133122001).

The spelling of 100121210011001 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, one".