1010000100121 has 4 divisors (see below), whose sum is σ = 1042580748544. Its totient is φ = 977419451700.

The previous prime is 1010000100101. The next prime is 1010000100163. The reversal of 1010000100121 is 1210010000101.

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 1010000100121 - 2¹³ = 1010000091929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010000100101) 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, 16290324165 + ... + 16290324226.

It is an arithmetic number, because the mean of its divisors is an integer number (260645187136).

Almost surely, 2^{1010000100121} is an apocalyptic number.

It is an amenable number.

1010000100121 is a deficient number, since it is larger than the sum of its proper divisors (32580648423).

1010000100121 is an equidigital number, since it uses as much as digits as its factorization.

1010000100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32580648422.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1010000100121 its reverse (1210010000101), we get a palindrome (2220010100222).

The spelling of 1010000100121 in words is "one trillion, ten billion, one hundred thousand, one hundred twenty-one".