11100212212011 has 64 divisors (see below), whose sum is σ = 16940321287680. Its totient is φ = 6408858516480.

The previous prime is 11100212212009. The next prime is 11100212212043. The reversal of 11100212212011 is 11021221200111.

It is a happy number.

It is not a de Polignac number, because 11100212212011 - 2¹ = 11100212212009 is a prime.

It is a super-2 number, since 2×11100212212011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11100212212091) 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 63 ways as a sum of consecutive naturals, for example, 42608796 + ... + 42868518.

It is an arithmetic number, because the mean of its divisors is an integer number (264692520120).

Almost surely, 2^{11100212212011} is an apocalyptic number.

11100212212011 is a deficient number, since it is larger than the sum of its proper divisors (5840109075669).

11100212212011 is a wasteful number, since it uses less digits than its factorization.

11100212212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260316.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100212212011 its reverse (11021221200111), we get a palindrome (22121433412122).

The spelling of 11100212212011 in words is "eleven trillion, one hundred billion, two hundred twelve million, two hundred twelve thousand, eleven".