111220021210210 has 96 divisors (see below), whose sum is σ = 220415011185600. Its totient is φ = 40376649244800.

The previous prime is 111220021210147. The next prime is 111220021210217. The reversal of 111220021210210 is 12012120022111.

It is not an unprimeable number, because it can be changed into a prime (111220021210217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1799092681 + ... + 1799154499.

It is an arithmetic number, because the mean of its divisors is an integer number (2295989699850).

Almost surely, 2^{111220021210210} is an apocalyptic number.

111220021210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220021210210 is a deficient number, since it is larger than the sum of its proper divisors (109194989975390).

111220021210210 is a wasteful number, since it uses less digits than its factorization.

111220021210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64288 (or 64277 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220021210210 its reverse (12012120022111), we get a palindrome (123232141232321).

The spelling of 111220021210210 in words is "one hundred eleven trillion, two hundred twenty billion, twenty-one million, two hundred ten thousand, two hundred ten".