111021001222222 has 192 divisors, whose sum is σ = 213472236257280. Its totient is φ = 42143985580032.

The previous prime is 111021001222199. The next prime is 111021001222231. The reversal of 111021001222222 is 222222100120111.

It is a self number, because there is not a number n which added to its sum of digits gives 111021001222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10544301054 + ... + 10544311582.

It is an arithmetic number, because the mean of its divisors is an integer number (1111834563840).

Almost surely, 2^{111021001222222} is an apocalyptic number.

111021001222222 is a deficient number, since it is larger than the sum of its proper divisors (102451235035058).

111021001222222 is a wasteful number, since it uses less digits than its factorization.

111021001222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927 (or 10824 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111021001222222 its reverse (222222100120111), we get a palindrome (333243101342333).

The spelling of 111021001222222 in words is "one hundred eleven trillion, twenty-one billion, one million, two hundred twenty-two thousand, two hundred twenty-two".