1001212000121 has 16 divisors (see below), whose sum is σ = 1070757128448. Its totient is φ = 933857971200.

The previous prime is 1001212000111. The next prime is 1001212000133. The reversal of 1001212000121 is 1210002121001.

It is a cyclic number.

It is not a de Polignac number, because 1001212000121 - 2⁶ = 1001212000057 is a prime.

It is a super-3 number, since 3×1001212000121³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001212000111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1638836 + ... + 2165226.

It is an arithmetic number, because the mean of its divisors is an integer number (66922320528).

Almost surely, 2^{1001212000121} is an apocalyptic number.

It is an amenable number.

1001212000121 is a deficient number, since it is larger than the sum of its proper divisors (69545128327).

1001212000121 is a wasteful number, since it uses less digits than its factorization.

1001212000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528472.

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

Adding to 1001212000121 its reverse (1210002121001), we get a palindrome (2211214121122).

The spelling of 1001212000121 in words is "one trillion, one billion, two hundred twelve million, one hundred twenty-one", and thus it is an aban number.