1122201211011 has 4 divisors (see below), whose sum is σ = 1496268281352. Its totient is φ = 748134140672.

The previous prime is 1122201210961. The next prime is 1122201211037. The reversal of 1122201211011 is 1101121022211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1122201211011 - 2¹⁹ = 1122200686723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122201211051) 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, 187033535166 + ... + 187033535171.

It is an arithmetic number, because the mean of its divisors is an integer number (374067070338).

Almost surely, 2^{1122201211011} is an apocalyptic number.

1122201211011 is a deficient number, since it is larger than the sum of its proper divisors (374067070341).

1122201211011 is an equidigital number, since it uses as much as digits as its factorization.

1122201211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374067070340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122201211011 its reverse (1101121022211), we get a palindrome (2223322233222).

It can be divided in two parts, 112220 and 1211011, that added together give a palindrome (1323231).

The spelling of 1122201211011 in words is "one trillion, one hundred twenty-two billion, two hundred one million, two hundred eleven thousand, eleven".