11222221120011 has 36 divisors (see below), whose sum is σ = 17825240194944. Its totient is φ = 6798378486240.

The previous prime is 11222221120003. The next prime is 11222221120037. The reversal of 11222221120011 is 11002112222211.

11222221120011 is a `hidden beast` number, since 11 + 222 + 221 + 1 + 200 + 11 = 666.

It is not a de Polignac number, because 11222221120011 - 2³ = 11222221120003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222221120051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 250006 + ... + 4744148.

Almost surely, 2^{11222221120011} is an apocalyptic number.

11222221120011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11222221120011 is a deficient number, since it is larger than the sum of its proper divisors (6603019074933).

11222221120011 is a wasteful number, since it uses less digits than its factorization.

11222221120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496464 (or 4496450 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11222221120011 its reverse (11002112222211), we get a palindrome (22224333342222).

The spelling of 11222221120011 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, eleven".