102012012000121 has 4 divisors (see below), whose sum is σ = 102012032250100. Its totient is φ = 102011991750144.

The previous prime is 102012012000023. The next prime is 102012012000167. The reversal of 102012012000121 is 121000210210201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98003347312896 + 4008664687225 = 9899664^2 + 2002165^2 .

It is a cyclic number.

It is not a de Polignac number, because 102012012000121 - 2¹⁷ = 102012011869049 is a prime.

It is a super-3 number, since 3×102012012000121³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012012000421) 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, 3998245 + ... + 14832733.

It is an arithmetic number, because the mean of its divisors is an integer number (25503008062525).

Almost surely, 2^{102012012000121} is an apocalyptic number.

It is an amenable number.

102012012000121 is a deficient number, since it is larger than the sum of its proper divisors (20249979).

102012012000121 is an equidigital number, since it uses as much as digits as its factorization.

102012012000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20249978.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102012012000121 its reverse (121000210210201), we get a palindrome (223012222210322).

The spelling of 102012012000121 in words is "one hundred two trillion, twelve billion, twelve million, one hundred twenty-one", and thus it is an aban number.