111121102212202 has 4 divisors (see below), whose sum is σ = 166681653318306. Its totient is φ = 55560551106100.

The previous prime is 111121102212151. The next prime is 111121102212227. The reversal of 111121102212202 is 202212201121111.

It is a happy number.

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., 74015205097681 + 37105897114521 = 8603209^2 + 6091461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111121102212202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780275553049 + ... + 27780275553052.

Almost surely, 2^{111121102212202} is an apocalyptic number.

111121102212202 is a deficient number, since it is larger than the sum of its proper divisors (55560551106104).

111121102212202 is an equidigital number, since it uses as much as digits as its factorization.

111121102212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55560551106103.

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

Adding to 111121102212202 its reverse (202212201121111), we get a palindrome (313333303333313).

The spelling of 111121102212202 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred two million, two hundred twelve thousand, two hundred two".