111111122121202 has 64 divisors (see below), whose sum is σ = 197569753565184. Its totient is φ = 45880189729920.

The previous prime is 111111122121187. The next prime is 111111122121221. The reversal of 111111122121202 is 202121221111111.

It is a self number, because there is not a number n which added to its sum of digits gives 111111122121202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8951598 + ... + 17388310.

It is an arithmetic number, because the mean of its divisors is an integer number (3087027399456).

Almost surely, 2^{111111122121202} is an apocalyptic number.

111111122121202 is a deficient number, since it is larger than the sum of its proper divisors (86458631443982).

111111122121202 is a wasteful number, since it uses less digits than its factorization.

111111122121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437063.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111111122121202 its reverse (202121221111111), we get a palindrome (313232343232313).

The spelling of 111111122121202 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred two".