1012012021001 has 4 divisors (see below), whose sum is σ = 1065275811600. Its totient is φ = 958748230404.

The previous prime is 1012012020983. The next prime is 1012012021037. The reversal of 1012012021001 is 1001202102101.

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 a de Polignac number, because none of the positive numbers 2^k-1012012021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612012021001) 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, 26631895271 + ... + 26631895308.

It is an arithmetic number, because the mean of its divisors is an integer number (266318952900).

Almost surely, 2^{1012012021001} is an apocalyptic number.

It is an amenable number.

1012012021001 is a deficient number, since it is larger than the sum of its proper divisors (53263790599).

1012012021001 is an equidigital number, since it uses as much as digits as its factorization.

1012012021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53263790598.

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

Adding to 1012012021001 its reverse (1001202102101), we get a palindrome (2013214123102).

The spelling of 1012012021001 in words is "one trillion, twelve billion, twelve million, twenty-one thousand, one".