11122213121211 has 16 divisors (see below), whose sum is σ = 14890312327968. Its totient is φ = 7384523078400.

The previous prime is 11122213121189. The next prime is 11122213121233. The reversal of 11122213121211 is 11212131222111.

It is an interprime number because it is at equal distance from previous prime (11122213121189) and next prime (11122213121233).

It is not a de Polignac number, because 11122213121211 - 2³³ = 11113623186619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11122213121291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6997396 + ... + 8438481.

It is an arithmetic number, because the mean of its divisors is an integer number (930644520498).

Almost surely, 2^{11122213121211} is an apocalyptic number.

11122213121211 is a deficient number, since it is larger than the sum of its proper divisors (3768099206757).

11122213121211 is a wasteful number, since it uses less digits than its factorization.

11122213121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436862.

The product of its digits is 96, while the sum is 21.

Adding to 11122213121211 its reverse (11212131222111), we get a palindrome (22334344343322).

The spelling of 11122213121211 in words is "eleven trillion, one hundred twenty-two billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred eleven".