1122222122011 has 4 divisors (see below), whose sum is σ = 1122764522400. Its totient is φ = 1121679721624.

The previous prime is 1122222121963. The next prime is 1122222122027. The reversal of 1122222122011 is 1102212222211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122222122011 is a prime.

It is a super-2 number, since 2×1122222122011² (a number of 25 digits) contains 22 as substring.

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 1122222122011.

It is not an unprimeable number, because it can be changed into a prime (1122222122611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271197091 + ... + 271201228.

It is an arithmetic number, because the mean of its divisors is an integer number (280691130600).

Almost surely, 2^{1122222122011} is an apocalyptic number.

1122222122011 is a deficient number, since it is larger than the sum of its proper divisors (542400389).

1122222122011 is an equidigital number, since it uses as much as digits as its factorization.

1122222122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542400388.

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

Adding to 1122222122011 its reverse (1102212222211), we get a palindrome (2224434344222).

The spelling of 1122222122011 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, eleven".