11121011222211 has 24 divisors (see below), whose sum is σ = 17532430883136. Its totient is φ = 6736770955440.

The previous prime is 11121011222201. The next prime is 11121011222239. The reversal of 11121011222211 is 11222211012111.

It is a happy number.

11121011222211 is a `hidden beast` number, since 1 + 11 + 210 + 11 + 222 + 211 = 666.

It is not a de Polignac number, because 11121011222211 - 2²⁷ = 11120877004483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121011222201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26758125 + ... + 27170558.

It is an arithmetic number, because the mean of its divisors is an integer number (730517953464).

Almost surely, 2^{11121011222211} is an apocalyptic number.

11121011222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121011222211 is a deficient number, since it is larger than the sum of its proper divisors (6411419660925).

11121011222211 is a wasteful number, since it uses less digits than its factorization.

11121011222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53930783 (or 53930780 counting only the distinct ones).

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

Adding to 11121011222211 its reverse (11222211012111), we get a palindrome (22343222234322).

The spelling of 11121011222211 in words is "eleven trillion, one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, two hundred eleven".