1122222120211 has 4 divisors (see below), whose sum is σ = 1124755353432. Its totient is φ = 1119688886992.

The previous prime is 1122222120137. The next prime is 1122222120241. The reversal of 1122222120211 is 1120212222211.

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 1122222120211 - 2⁹ = 1122222119699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122222120241) 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, 1266615946 + ... + 1266616831.

It is an arithmetic number, because the mean of its divisors is an integer number (281188838358).

Almost surely, 2^{1122222120211} is an apocalyptic number.

1122222120211 is a deficient number, since it is larger than the sum of its proper divisors (2533233221).

1122222120211 is an equidigital number, since it uses as much as digits as its factorization.

1122222120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533233220.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1122222120211 its reverse (1120212222211), we get a palindrome (2242434342422).

The spelling of 1122222120211 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, two hundred eleven".