111012101221210 has 64 divisors (see below), whose sum is σ = 233133705446400. Its totient is φ = 37269787905792.

The previous prime is 111012101221193. The next prime is 111012101221283. The reversal of 111012101221210 is 12122101210111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27504930 + ... + 31281709.

It is an arithmetic number, because the mean of its divisors is an integer number (3642714147600).

Almost surely, 2^{111012101221210} is an apocalyptic number.

111012101221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111012101221210 is an abundant number, since it is smaller than the sum of its proper divisors (122121604225190).

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

111012101221210 is a wasteful number, since it uses less digits than its factorization.

111012101221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58787215.

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

Adding to 111012101221210 its reverse (12122101210111), we get a palindrome (123134202431321).

The spelling of 111012101221210 in words is "one hundred eleven trillion, twelve billion, one hundred one million, two hundred twenty-one thousand, two hundred ten".