111201202011122 has 4 divisors (see below), whose sum is σ = 166801803016686. Its totient is φ = 55600601005560.

The previous prime is 111201202011121. The next prime is 111201202011161. The reversal of 111201202011122 is 221110202102111.

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

It can be written as a sum of positive squares in only one way, i.e., 70706420681521 + 40494781329601 = 8408711^2 + 6363551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111201202011122.

It is not an unprimeable number, because it can be changed into a prime (111201202011121) 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, 27800300502779 + ... + 27800300502782.

Almost surely, 2^{111201202011122} is an apocalyptic number.

111201202011122 is a deficient number, since it is larger than the sum of its proper divisors (55600601005564).

111201202011122 is an equidigital number, since it uses as much as digits as its factorization.

111201202011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55600601005563.

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

Adding to 111201202011122 its reverse (221110202102111), we get a palindrome (332311404113233).

The spelling of 111201202011122 in words is "one hundred eleven trillion, two hundred one billion, two hundred two million, eleven thousand, one hundred twenty-two".