100010120020121 has 4 divisors (see below), whose sum is σ = 100010804871552. Its totient is φ = 100009435168692.

The previous prime is 100010120020117. The next prime is 100010120020133. The reversal of 100010120020121 is 121020021010001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100010120020121 - 2² = 100010120020117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100010120029121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342206621 + ... + 342498746.

It is an arithmetic number, because the mean of its divisors is an integer number (25002701217888).

Almost surely, 2^{100010120020121} is an apocalyptic number.

It is an amenable number.

100010120020121 is a deficient number, since it is larger than the sum of its proper divisors (684851431).

100010120020121 is an equidigital number, since it uses as much as digits as its factorization.

100010120020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684851430.

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

Adding to 100010120020121 its reverse (121020021010001), we get a palindrome (221030141030122).

The spelling of 100010120020121 in words is "one hundred trillion, ten billion, one hundred twenty million, twenty thousand, one hundred twenty-one".