111212012202202 has 8 divisors (see below), whose sum is σ = 167739664813812. Its totient is φ = 55298790597600.

The previous prime is 111212012202191. The next prime is 111212012202241. The reversal of 111212012202202 is 202202210212111.

It can be written as a sum of positive squares in 2 ways, for example, as 100107648955161 + 11104363247041 = 10005381^2 + 3332321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111212012202202² (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 111212012202202.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 153607751299 + ... + 153607752022.

Almost surely, 2^{111212012202202} is an apocalyptic number.

111212012202202 is a deficient number, since it is larger than the sum of its proper divisors (56527652611610).

111212012202202 is a wasteful number, since it uses less digits than its factorization.

111212012202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307215503504.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111212012202202 its reverse (202202210212111), we get a palindrome (313414222414313).

The spelling of 111212012202202 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, two hundred two thousand, two hundred two".