111000012122222 has 4 divisors (see below), whose sum is σ = 166500018183336. Its totient is φ = 55500006061110.

The previous prime is 111000012122221. The next prime is 111000012122297. The reversal of 111000012122222 is 222221210000111.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×111000012122222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111000012122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000012122221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750003030554 + ... + 27750003030557.

It is an arithmetic number, because the mean of its divisors is an integer number (41625004545834).

Almost surely, 2^{111000012122222} is an apocalyptic number.

111000012122222 is a deficient number, since it is larger than the sum of its proper divisors (55500006061114).

111000012122222 is an equidigital number, since it uses as much as digits as its factorization.

111000012122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55500006061113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111000012122222 its reverse (222221210000111), we get a palindrome (333221222122333).

The spelling of 111000012122222 in words is "one hundred eleven trillion, twelve million, one hundred twenty-two thousand, two hundred twenty-two".