1012210010001 has 12 divisors (see below), whose sum is σ = 1462252701312. Its totient is φ = 674727484536.

The previous prime is 1012210009991. The next prime is 1012210010011. The reversal of 1012210010001 is 1000100122101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1012210009991) and next prime (1012210010011).

It is not a de Polignac number, because 1012210010001 - 2³⁴ = 995030140817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1012210010011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6518061 + ... + 6671546.

It is an arithmetic number, because the mean of its divisors is an integer number (121854391776).

Almost surely, 2^{1012210010001} is an apocalyptic number.

It is an amenable number.

1012210010001 is a deficient number, since it is larger than the sum of its proper divisors (450042691311).

1012210010001 is a wasteful number, since it uses less digits than its factorization.

1012210010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198140 (or 13198137 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012210010001 its reverse (1000100122101), we get a palindrome (2012310132102).

The spelling of 1012210010001 in words is "one trillion, twelve billion, two hundred ten million, ten thousand, one".