1222002211 has 8 divisors (see below), whose sum is σ = 1297598400. Its totient is φ = 1146818688.

The previous prime is 1222002181. The next prime is 1222002241. The reversal of 1222002211 is 1122002221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222002181) and next prime (1222002241).

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 1222002211 - 2⁵ = 1222002179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222002191 and 1222002200.

It is not an unprimeable number, because it can be changed into a prime (1222002241) 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 7 ways as a sum of consecutive naturals, for example, 97051 + ... + 108916.

It is an arithmetic number, because the mean of its divisors is an integer number (162199800).

Almost surely, 2^1222002211 is an apocalyptic number.

1222002211 is a deficient number, since it is larger than the sum of its proper divisors (75596189).

1222002211 is a wasteful number, since it uses less digits than its factorization.

1222002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206333.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1222002211 is about 34957.1482103446. The cubic root of 1222002211 is about 1069.1139521899.

Adding to 1222002211 its reverse (1122002221), we get a palindrome (2344004432).

The spelling of 1222002211 in words is "one billion, two hundred twenty-two million, two thousand, two hundred eleven".