1122111212201 has 4 divisors (see below), whose sum is σ = 1282412813952. Its totient is φ = 961809610452.

The previous prime is 1122111212137. The next prime is 1122111212203. The reversal of 1122111212201 is 1022121112211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122111212201 - 2⁶ = 1122111212137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122111212201.

It is not an unprimeable number, because it can be changed into a prime (1122111212203) 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, 80150800865 + ... + 80150800878.

It is an arithmetic number, because the mean of its divisors is an integer number (320603203488).

Almost surely, 2^{1122111212201} is an apocalyptic number.

It is an amenable number.

1122111212201 is a deficient number, since it is larger than the sum of its proper divisors (160301601751).

1122111212201 is an equidigital number, since it uses as much as digits as its factorization.

1122111212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160301601750.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122111212201 its reverse (1022121112211), we get a palindrome (2144232324412).

The spelling of 1122111212201 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred one".