11122021211 has 16 divisors (see below), whose sum is σ = 12841989888. Its totient is φ = 9435333600.

The previous prime is 11122021193. The next prime is 11122021213. The reversal of 11122021211 is 11212022111.

It is not a de Polignac number, because 11122021211 - 2¹⁰ = 11122020187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11122021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246536 + ... + 288138.

It is an arithmetic number, because the mean of its divisors is an integer number (802624368).

Almost surely, 2^11122021211 is an apocalyptic number.

11122021211 is a deficient number, since it is larger than the sum of its proper divisors (1719968677).

11122021211 is a wasteful number, since it uses less digits than its factorization.

11122021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42002.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11122021211 its reverse (11212022111), we get a palindrome (22334043322).

The spelling of 11122021211 in words is "eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred eleven".