111212311020211 has 8 divisors (see below), whose sum is σ = 115067251068480. Its totient is φ = 107358706490112.

The previous prime is 111212311020193. The next prime is 111212311020229. The reversal of 111212311020211 is 112020113212111.

It is an interprime number because it is at equal distance from previous prime (111212311020193) and next prime (111212311020229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111212311020211 - 2⁴⁵ = 76027938931379 is a prime.

It is a super-2 number, since 2×111212311020211² (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 (111212311023211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333710110 + ... + 334043203.

It is an arithmetic number, because the mean of its divisors is an integer number (14383406383560).

Almost surely, 2^{111212311020211} is an apocalyptic number.

111212311020211 is a deficient number, since it is larger than the sum of its proper divisors (3854940048269).

111212311020211 is an equidigital number, since it uses as much as digits as its factorization.

111212311020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667759085.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 111212311020211 its reverse (112020113212111), we get a palindrome (223232424232322).

The spelling of 111212311020211 in words is "one hundred eleven trillion, two hundred twelve billion, three hundred eleven million, twenty thousand, two hundred eleven".