10111222201 has 4 divisors (see below), whose sum is σ = 10276980004. Its totient is φ = 9945464400.

The previous prime is 10111222171. The next prime is 10111222207. The reversal of 10111222201 is 10222211101.

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 2581148025 + 7530074176 = 50805^2 + 86776^2 .

It is not a de Polignac number, because 10111222201 - 2⁹ = 10111221689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111222207) 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, 82878810 + ... + 82878931.

It is an arithmetic number, because the mean of its divisors is an integer number (2569245001).

Almost surely, 2^10111222201 is an apocalyptic number.

It is an amenable number.

10111222201 is a deficient number, since it is larger than the sum of its proper divisors (165757803).

10111222201 is an equidigital number, since it uses as much as digits as its factorization.

10111222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165757802.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10111222201 its reverse (10222211101), we get a palindrome (20333433302).

The spelling of 10111222201 in words is "ten billion, one hundred eleven million, two hundred twenty-two thousand, two hundred one".