1122121120211 has 16 divisors (see below), whose sum is σ = 1393979376384. Its totient is φ = 879534591264.

The previous prime is 1122121120157. The next prime is 1122121120229. The reversal of 1122121120211 is 1120211212211.

It is not a de Polignac number, because 1122121120211 - 2¹⁴ = 1122121103827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122121120211.

It is not an unprimeable number, because it can be changed into a prime (1122121120811) 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 15 ways as a sum of consecutive naturals, for example, 57611765 + ... + 57631238.

It is an arithmetic number, because the mean of its divisors is an integer number (87123711024).

Almost surely, 2^{1122121120211} is an apocalyptic number.

1122121120211 is a deficient number, since it is larger than the sum of its proper divisors (271858256173).

1122121120211 is a wasteful number, since it uses less digits than its factorization.

1122121120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115243130.

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

Adding to 1122121120211 its reverse (1120211212211), we get a palindrome (2242332332422).

The spelling of 1122121120211 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".