111121102202212 has 6 divisors (see below), whose sum is σ = 194461928853878. Its totient is φ = 55560551101104.

The previous prime is 111121102202207. The next prime is 111121102202219. The reversal of 111121102202212 is 212202201121111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 99021724333156 + 12099377869056 = 9950966^2 + 3478416^2 .

It is a super-2 number, since 2×111121102202212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111121102202212.

It is not an unprimeable number, because it can be changed into a prime (111121102202219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890137775273 + ... + 13890137775280.

Almost surely, 2^{111121102202212} is an apocalyptic number.

It is an amenable number.

111121102202212 is a deficient number, since it is larger than the sum of its proper divisors (83340826651666).

111121102202212 is a wasteful number, since it uses less digits than its factorization.

111121102202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27780275550557 (or 27780275550555 counting only the distinct ones).

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

Adding to 111121102202212 its reverse (212202201121111), we get a palindrome (323323303323323).

The spelling of 111121102202212 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred two million, two hundred two thousand, two hundred twelve".