111211220001122 has 16 divisors (see below), whose sum is σ = 167039043229440. Its totient is φ = 55531561236912.

The previous prime is 111211220001073. The next prime is 111211220001127. The reversal of 111211220001122 is 221100022112111.

It is a self number, because there is not a number n which added to its sum of digits gives 111211220001122.

It is not an unprimeable number, because it can be changed into a prime (111211220001127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4399808 + ... + 15549300.

It is an arithmetic number, because the mean of its divisors is an integer number (10439940201840).

Almost surely, 2^{111211220001122} is an apocalyptic number.

111211220001122 is a deficient number, since it is larger than the sum of its proper divisors (55827823228318).

111211220001122 is a wasteful number, since it uses less digits than its factorization.

111211220001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11156137.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111211220001122 its reverse (221100022112111), we get a palindrome (332311242113233).

The spelling of 111211220001122 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred twenty million, one thousand, one hundred twenty-two".