1222120112211 has 48 divisors (see below), whose sum is σ = 1908695661600. Its totient is φ = 750893981184.

The previous prime is 1222120112201. The next prime is 1222120112233. The reversal of 1222120112211 is 1122110212221.

1222120112211 is a `hidden beast` number, since 1 + 222 + 120 + 112 + 211 = 666.

It is not a de Polignac number, because 1222120112211 - 2¹³ = 1222120104019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222120112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72353455 + ... + 72370343.

It is an arithmetic number, because the mean of its divisors is an integer number (39764492950).

Almost surely, 2^{1222120112211} is an apocalyptic number.

1222120112211 is a deficient number, since it is larger than the sum of its proper divisors (686575549389).

1222120112211 is a wasteful number, since it uses less digits than its factorization.

1222120112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28388 (or 28385 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1222120112211 its reverse (1122110212221), we get a palindrome (2344230324432).

It can be divided in two parts, 1222120 and 112211, that added together give a palindrome (1334331).

The spelling of 1222120112211 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred twelve thousand, two hundred eleven".