100121021020001 has 16 divisors (see below), whose sum is σ = 102272737292544. Its totient is φ = 97994742257664.

The previous prime is 100121021019961. The next prime is 100121021020037. The reversal of 100121021020001 is 100020120121001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121021020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121024020001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679625 + ... + 14167001.

It is an arithmetic number, because the mean of its divisors is an integer number (6392046080784).

Almost surely, 2^{100121021020001} is an apocalyptic number.

It is an amenable number.

100121021020001 is a deficient number, since it is larger than the sum of its proper divisors (2151716272543).

100121021020001 is a wasteful number, since it uses less digits than its factorization.

100121021020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13488320.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100121021020001 its reverse (100020120121001), we get a palindrome (200141141141002).

The spelling of 100121021020001 in words is "one hundred trillion, one hundred twenty-one billion, twenty-one million, twenty thousand, one".