111010101022211 has 16 divisors (see below), whose sum is σ = 118960251101568. Its totient is φ = 103222213248000.

The previous prime is 111010101022201. The next prime is 111010101022273. The reversal of 111010101022211 is 112220101010111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111010101022211 is a prime.

It is a super-2 number, since 2×111010101022211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111010101022201) 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 15 ways as a sum of consecutive naturals, for example, 69025250 + ... + 70615191.

It is an arithmetic number, because the mean of its divisors is an integer number (7435015693848).

Almost surely, 2^{111010101022211} is an apocalyptic number.

111010101022211 is a deficient number, since it is larger than the sum of its proper divisors (7950150079357).

111010101022211 is a wasteful number, since it uses less digits than its factorization.

111010101022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139641022.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111010101022211 its reverse (112220101010111), we get a palindrome (223230202032322).

The spelling of 111010101022211 in words is "one hundred eleven trillion, ten billion, one hundred one million, twenty-two thousand, two hundred eleven".