111211212010011 has 32 divisors (see below), whose sum is σ = 155532623059968. Its totient is φ = 70600720158720.

The previous prime is 111211212010009. The next prime is 111211212010027. The reversal of 111211212010011 is 110010212112111.

It is not a de Polignac number, because 111211212010011 - 2¹ = 111211212010009 is a prime.

It is a super-2 number, since 2×111211212010011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111211212010091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290296356 + ... + 290679198.

It is an arithmetic number, because the mean of its divisors is an integer number (4860394470624).

Almost surely, 2^{111211212010011} is an apocalyptic number.

111211212010011 is a deficient number, since it is larger than the sum of its proper divisors (44321411049957).

111211212010011 is a wasteful number, since it uses less digits than its factorization.

111211212010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438611.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111211212010011 its reverse (110010212112111), we get a palindrome (221221424122122).

The spelling of 111211212010011 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred twelve million, ten thousand, eleven".