111213211143210 has 256 divisors, whose sum is σ = 302424793026048. Its totient is φ = 25936257024000.

The previous prime is 111213211143197. The next prime is 111213211143289. The reversal of 111213211143210 is 12341112312111.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1223408760 + ... + 1223499660.

It is an arithmetic number, because the mean of its divisors is an integer number (1181346847758).

Almost surely, 2^{111213211143210} is an apocalyptic number.

111213211143210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111213211143210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151212396513024).

111213211143210 is an abundant number, since it is smaller than the sum of its proper divisors (191211581882838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111213211143210 is a wasteful number, since it uses less digits than its factorization.

111213211143210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92089.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 111213211143210 its reverse (12341112312111), we get a palindrome (123554323455321).

The spelling of 111213211143210 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred eleven million, one hundred forty-three thousand, two hundred ten".