1010112121201 has 4 divisors (see below), whose sum is σ = 1010116079092. Its totient is φ = 1010108163312.

The previous prime is 1010112121129. The next prime is 1010112121217. The reversal of 1010112121201 is 1021212110101.

It is a happy number.

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 102758713600 + 907353407601 = 320560^2 + 952551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010112121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010112121001) 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, 1567626 + ... + 2116051.

It is an arithmetic number, because the mean of its divisors is an integer number (252529019773).

Almost surely, 2^{1010112121201} is an apocalyptic number.

It is an amenable number.

1010112121201 is a deficient number, since it is larger than the sum of its proper divisors (3957891).

1010112121201 is an equidigital number, since it uses as much as digits as its factorization.

1010112121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957890.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1010112121201 its reverse (1021212110101), we get a palindrome (2031324231302).

The spelling of 1010112121201 in words is "one trillion, ten billion, one hundred twelve million, one hundred twenty-one thousand, two hundred one".