10100121200121 has 4 divisors (see below), whose sum is σ = 13466828266832. Its totient is φ = 6733414133412.

The previous prime is 10100121200069. The next prime is 10100121200167. The reversal of 10100121200121 is 12100212100101.

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 not a de Polignac number, because 10100121200121 - 2¹¹ = 10100121198073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10100121200097 and 10100121200106.

It is not an unprimeable number, because it can be changed into a prime (10100128200121) 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, 1683353533351 + ... + 1683353533356.

It is an arithmetic number, because the mean of its divisors is an integer number (3366707066708).

Almost surely, 2^{10100121200121} is an apocalyptic number.

It is an amenable number.

10100121200121 is a deficient number, since it is larger than the sum of its proper divisors (3366707066711).

10100121200121 is an equidigital number, since it uses as much as digits as its factorization.

10100121200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366707066710.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10100121200121 its reverse (12100212100101), we get a palindrome (22200333300222).

The spelling of 10100121200121 in words is "ten trillion, one hundred billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-one".