100012010212121 has 16 divisors (see below), whose sum is σ = 114930236510208. Its totient is φ = 85252274787600.

The previous prime is 100012010212117. The next prime is 100012010212129. The reversal of 100012010212121 is 121212010210001.

It is a cyclic number.

It is not a de Polignac number, because 100012010212121 - 2² = 100012010212117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100012010212096 and 100012010212105.

It is not an unprimeable number, because it can be changed into a prime (100012010212129) 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, 31475615 + ... + 34507076.

It is an arithmetic number, because the mean of its divisors is an integer number (7183139781888).

Almost surely, 2^{100012010212121} is an apocalyptic number.

It is an amenable number.

100012010212121 is a deficient number, since it is larger than the sum of its proper divisors (14918226298087).

100012010212121 is an equidigital number, since it uses as much as digits as its factorization.

100012010212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65983892.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100012010212121 its reverse (121212010210001), we get a palindrome (221224020422122).

The spelling of 100012010212121 in words is "one hundred trillion, twelve billion, ten million, two hundred twelve thousand, one hundred twenty-one".