1222122011 has 8 divisors (see below), whose sum is σ = 1334581248. Its totient is φ = 1109889000.

The previous prime is 1222122001. The next prime is 1222122017. The reversal of 1222122011 is 1102212221.

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

It is not a de Polignac number, because 1222122011 - 2⁶ = 1222121947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222122017) 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, 45155 + ... + 66956.

It is an arithmetic number, because the mean of its divisors is an integer number (166822656).

Almost surely, 2^1222122011 is an apocalyptic number.

1222122011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222122011 is a deficient number, since it is larger than the sum of its proper divisors (112459237).

1222122011 is a wasteful number, since it uses less digits than its factorization.

1222122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113113.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222122011 is about 34958.8616948550. The cubic root of 1222122011 is about 1069.1488882058.

Adding to 1222122011 its reverse (1102212221), we get a palindrome (2324334232).

The spelling of 1222122011 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, eleven".