1012001312121 has 8 divisors (see below), whose sum is σ = 1352733913344. Its totient is φ = 672968126160.

The previous prime is 1012001312083. The next prime is 1012001312123. The reversal of 1012001312121 is 1212131002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012001312121 - 2⁶ = 1012001312057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012001312121.

It is not an unprimeable number, because it can be changed into a prime (1012001312123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424852425 + ... + 424854806.

It is an arithmetic number, because the mean of its divisors is an integer number (169091739168).

Almost surely, 2^{1012001312121} is an apocalyptic number.

It is an amenable number.

1012001312121 is a deficient number, since it is larger than the sum of its proper divisors (340732601223).

1012001312121 is an equidigital number, since it uses as much as digits as its factorization.

1012001312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849707631.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1012001312121 its reverse (1212131002101), we get a palindrome (2224132314222).

The spelling of 1012001312121 in words is "one trillion, twelve billion, one million, three hundred twelve thousand, one hundred twenty-one".