111210220122011 has 4 divisors (see below), whose sum is σ = 113576395018272. Its totient is φ = 108844045225752.

The previous prime is 111210220121993. The next prime is 111210220122017. The reversal of 111210220122011 is 110221022012111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111210220122011 - 2⁶ = 111210220121947 is a prime.

It is a super-2 number, since 2×111210220122011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210220122017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183087448060 + ... + 1183087448153.

It is an arithmetic number, because the mean of its divisors is an integer number (28394098754568).

Almost surely, 2^{111210220122011} is an apocalyptic number.

111210220122011 is a deficient number, since it is larger than the sum of its proper divisors (2366174896261).

111210220122011 is an equidigital number, since it uses as much as digits as its factorization.

111210220122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366174896260.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111210220122011 its reverse (110221022012111), we get a palindrome (221431242134122).

The spelling of 111210220122011 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twenty million, one hundred twenty-two thousand, eleven".