1121223110201 has 4 divisors (see below), whose sum is σ = 1159885976100. Its totient is φ = 1082560244304.

The previous prime is 1121223110167. The next prime is 1121223110221. The reversal of 1121223110201 is 1020113221211.

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 527824045225 + 593399064976 = 726515^2 + 770324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121223110201 - 2²² = 1121218915897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121223110201.

It is not an unprimeable number, because it can be changed into a prime (1121223110221) 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, 19331432906 + ... + 19331432963.

It is an arithmetic number, because the mean of its divisors is an integer number (289971494025).

Almost surely, 2^{1121223110201} is an apocalyptic number.

It is an amenable number.

1121223110201 is a deficient number, since it is larger than the sum of its proper divisors (38662865899).

1121223110201 is an equidigital number, since it uses as much as digits as its factorization.

1121223110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38662865898.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121223110201 its reverse (1020113221211), we get a palindrome (2141336331412).

It can be divided in two parts, 1121 and 223110201, that added together give a palindrome (223111322).

The spelling of 1121223110201 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-three million, one hundred ten thousand, two hundred one".