1122211012211 has 4 divisors (see below), whose sum is σ = 1188223424712. Its totient is φ = 1056198599712.

The previous prime is 1122211012207. The next prime is 1122211012277. The reversal of 1122211012211 is 1122101122211.

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 1122211012211 - 2² = 1122211012207 is a prime.

It is a super-2 number, since 2×1122211012211² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 66012412483 = 1122211012211 / (1 + 1 + 2 + 2 + 2 + 1 + 1 + 0 + 1 + 2 + 2 + 1 + 1).

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 1122211012211.

It is not an unprimeable number, because it can be changed into a prime (1122211012511) 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, 33006206225 + ... + 33006206258.

It is an arithmetic number, because the mean of its divisors is an integer number (297055856178).

Almost surely, 2^{1122211012211} is an apocalyptic number.

1122211012211 is a deficient number, since it is larger than the sum of its proper divisors (66012412501).

1122211012211 is an equidigital number, since it uses as much as digits as its factorization.

1122211012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66012412500.

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

Adding to 1122211012211 its reverse (1122101122211), we get a palindrome (2244312134422).

The spelling of 1122211012211 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, twelve thousand, two hundred eleven".