111121121022202 has 32 divisors (see below), whose sum is σ = 167855685685632. Its totient is φ = 55170541635264.

The previous prime is 111121121022199. The next prime is 111121121022203. The reversal of 111121121022202 is 202220121121111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111121121022202.

It is not an unprimeable number, because it can be changed into a prime (111121121022203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020981203 + ... + 2021036185.

It is an arithmetic number, because the mean of its divisors is an integer number (5245490177676).

Almost surely, 2^{111121121022202} is an apocalyptic number.

111121121022202 is a deficient number, since it is larger than the sum of its proper divisors (56734564663430).

111121121022202 is a wasteful number, since it uses less digits than its factorization.

111121121022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66822.

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

Adding to 111121121022202 its reverse (202220121121111), we get a palindrome (313341242143313).

The spelling of 111121121022202 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, two hundred two".