111222012221210 has 32 divisors (see below), whose sum is σ = 231246622204992. Its totient is φ = 38065287604480.

The previous prime is 111222012221197. The next prime is 111222012221237. The reversal of 111222012221210 is 12122210222111.

111222012221210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29738504072 + ... + 29738507811.

It is an arithmetic number, because the mean of its divisors is an integer number (7226456943906).

Almost surely, 2^{111222012221210} is an apocalyptic number.

111222012221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222012221210 is an abundant number, since it is smaller than the sum of its proper divisors (120024609983782).

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

111222012221210 is a wasteful number, since it uses less digits than its factorization.

111222012221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59477011918.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111222012221210 its reverse (12122210222111), we get a palindrome (123344222443321).

The spelling of 111222012221210 in words is "one hundred eleven trillion, two hundred twenty-two billion, twelve million, two hundred twenty-one thousand, two hundred ten".