111211021022222 has 16 divisors (see below), whose sum is σ = 181982403724032. Its totient is φ = 50550260500920.

The previous prime is 111211021022191. The next prime is 111211021022273. The reversal of 111211021022222 is 222220120112111.

It is a junction number, because it is equal to n+sod(n) for n = 111211021022194 and 111211021022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4523798 + ... + 15584825.

It is an arithmetic number, because the mean of its divisors is an integer number (11373900232752).

Almost surely, 2^{111211021022222} is an apocalyptic number.

111211021022222 is a deficient number, since it is larger than the sum of its proper divisors (70771382701810).

111211021022222 is a wasteful number, since it uses less digits than its factorization.

111211021022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20360023.

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

Adding to 111211021022222 its reverse (222220120112111), we get a palindrome (333431141134333).

The spelling of 111211021022222 in words is "one hundred eleven trillion, two hundred eleven billion, twenty-one million, twenty-two thousand, two hundred twenty-two".