11121012122211 has 6 divisors (see below), whose sum is σ = 16063684176540. Its totient is φ = 7414008081468.

The previous prime is 11121012122197. The next prime is 11121012122219. The reversal of 11121012122211 is 11222121012111.

It is a happy number.

11121012122211 is a `hidden beast` number, since 111 + 210 + 12 + 122 + 211 = 666.

It is not a de Polignac number, because 11121012122211 - 2¹³ = 11121012114019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121012122219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617834006781 + ... + 617834006798.

It is an arithmetic number, because the mean of its divisors is an integer number (2677280696090).

Almost surely, 2^{11121012122211} is an apocalyptic number.

11121012122211 is a deficient number, since it is larger than the sum of its proper divisors (4942672054329).

11121012122211 is a wasteful number, since it uses less digits than its factorization.

11121012122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235668013585 (or 1235668013582 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11121012122211 its reverse (11222121012111), we get a palindrome (22343133134322).

The spelling of 11121012122211 in words is "eleven trillion, one hundred twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred eleven".