111020211221122 has 64 divisors (see below), whose sum is σ = 212135005313280. Its totient is φ = 42421705261056.

The previous prime is 111020211221069. The next prime is 111020211221123. The reversal of 111020211221122 is 221122112020111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

111020211221122 is a modest number, since divided by 11221122 gives 1110202 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 111020211221122.

It is not an unprimeable number, because it can be changed into a prime (111020211221123) 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 31 ways as a sum of consecutive naturals, for example, 72466668 + ... + 73982824.

It is an arithmetic number, because the mean of its divisors is an integer number (3314609458020).

Almost surely, 2^{111020211221122} is an apocalyptic number.

111020211221122 is a deficient number, since it is larger than the sum of its proper divisors (101114794092158).

111020211221122 is a wasteful number, since it uses less digits than its factorization.

111020211221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532395.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111020211221122 its reverse (221122112020111), we get a palindrome (332142323241233).

The spelling of 111020211221122 in words is "one hundred eleven trillion, twenty billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".