1122212211211 has 8 divisors (see below), whose sum is σ = 1381184260064. Its totient is φ = 887904167040.

The previous prime is 1122212211193. The next prime is 1122212211217. The reversal of 1122212211211 is 1121122122211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122212211211 - 2¹⁹ = 1122211686923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122212211217) 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 7 ways as a sum of consecutive naturals, for example, 6166001070 + ... + 6166001251.

It is an arithmetic number, because the mean of its divisors is an integer number (172648032508).

Almost surely, 2^{1122212211211} is an apocalyptic number.

1122212211211 is a deficient number, since it is larger than the sum of its proper divisors (258972048853).

1122212211211 is a wasteful number, since it uses less digits than its factorization.

1122212211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12332002341.

The product of its digits is 64, while the sum is 19.

Adding to 1122212211211 its reverse (1121122122211), we get a palindrome (2243334333422).

The spelling of 1122212211211 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, two hundred eleven".