10011220111201 has 4 divisors (see below), whose sum is σ = 10018986768900. Its totient is φ = 10003453453504.

The previous prime is 10011220111187. The next prime is 10011220111229. The reversal of 10011220111201 is 10211102211001.

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 5818472446801 + 4192747664400 = 2412151^2 + 2047620^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011220111201 - 2¹⁷ = 10011219980129 is a prime.

It is a super-2 number, since 2×10011220111201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011220111261) 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, 3883326916 + ... + 3883329493.

It is an arithmetic number, because the mean of its divisors is an integer number (2504746692225).

Almost surely, 2^{10011220111201} is an apocalyptic number.

It is an amenable number.

10011220111201 is a deficient number, since it is larger than the sum of its proper divisors (7766657699).

10011220111201 is an equidigital number, since it uses as much as digits as its factorization.

10011220111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766657698.

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

Adding to 10011220111201 its reverse (10211102211001), we get a palindrome (20222322322202).

The spelling of 10011220111201 in words is "ten trillion, eleven billion, two hundred twenty million, one hundred eleven thousand, two hundred one".