10201112233121 has 4 divisors (see below), whose sum is σ = 10239034583700. Its totient is φ = 10163189882544.

The previous prime is 10201112233069. The next prime is 10201112233127. The reversal of 10201112233121 is 12133221110201.

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 1895413027600 + 8305699205521 = 1376740^2 + 2881961^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201112233121 - 2²² = 10201108038817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201112233093 and 10201112233102.

It is not an unprimeable number, because it can be changed into a prime (10201112233127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18961174886 + ... + 18961175423.

It is an arithmetic number, because the mean of its divisors is an integer number (2559758645925).

Almost surely, 2^{10201112233121} is an apocalyptic number.

It is an amenable number.

10201112233121 is a deficient number, since it is larger than the sum of its proper divisors (37922350579).

10201112233121 is an equidigital number, since it uses as much as digits as its factorization.

10201112233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37922350578.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 10201112233121 its reverse (12133221110201), we get a palindrome (22334333343322).

The spelling of 10201112233121 in words is "ten trillion, two hundred one billion, one hundred twelve million, two hundred thirty-three thousand, one hundred twenty-one".