10121001200001 has 24 divisors (see below), whose sum is σ = 15238432748864. Its totient is φ = 6466989054240.

The previous prime is 10121001199957. The next prime is 10121001200003. The reversal of 10121001200001 is 10000210012101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-10121001200001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121001200003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226794085 + ... + 226838706.

Almost surely, 2^{10121001200001} is an apocalyptic number.

It is an amenable number.

10121001200001 is a deficient number, since it is larger than the sum of its proper divisors (5117431548863).

10121001200001 is a wasteful number, since it uses less digits than its factorization.

10121001200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453632901 (or 453632898 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10121001200001 its reverse (10000210012101), we get a palindrome (20121211212102).

The spelling of 10121001200001 in words is "ten trillion, one hundred twenty-one billion, one million, two hundred thousand, one".