111112021212222 has 16 divisors (see below), whose sum is σ = 229886940439440. Its totient is φ = 35760190734912.

The previous prime is 111112021212197. The next prime is 111112021212239. The reversal of 111112021212222 is 222212120211111.

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, 319287417103 + ... + 319287417450.

It is an arithmetic number, because the mean of its divisors is an integer number (14367933777465).

Almost surely, 2^{111112021212222} is an apocalyptic number.

111112021212222 is an abundant number, since it is smaller than the sum of its proper divisors (118774919227218).

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

111112021212222 is a wasteful number, since it uses less digits than its factorization.

111112021212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638574834587.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111112021212222 its reverse (222212120211111), we get a palindrome (333324141423333).

The spelling of 111112021212222 in words is "one hundred eleven trillion, one hundred twelve billion, twenty-one million, two hundred twelve thousand, two hundred twenty-two".