111002221221222 has 256 divisors, whose sum is σ = 247105976832000. Its totient is φ = 33115029742080.

The previous prime is 111002221221191. The next prime is 111002221221223. The reversal of 111002221221222 is 222122122200111.

111002221221222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002221221223) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5516176453 + ... + 5516196575.

It is an arithmetic number, because the mean of its divisors is an integer number (965257722000).

Almost surely, 2^{111002221221222} is an apocalyptic number.

111002221221222 is an abundant number, since it is smaller than the sum of its proper divisors (136103755610778).

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

111002221221222 is a wasteful number, since it uses less digits than its factorization.

111002221221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20531.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 111002221221222 its reverse (222122122200111), we get a palindrome (333124343421333).

The spelling of 111002221221222 in words is "one hundred eleven trillion, two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".