111121302212 has 12 divisors (see below), whose sum is σ = 197650185516. Its totient is φ = 54649820640.

The previous prime is 111121302211. The next prime is 111121302217. The reversal of 111121302212 is 212203121111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13118495296 + 98002806916 = 114536^2 + 313054^2 .

It is a super-3 number, since 3×111121302212³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111121302211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227707343 + ... + 227707830.

It is an arithmetic number, because the mean of its divisors is an integer number (16470848793).

Almost surely, 2^111121302212 is an apocalyptic number.

It is an amenable number.

111121302212 is a deficient number, since it is larger than the sum of its proper divisors (86528883304).

111121302212 is a wasteful number, since it uses less digits than its factorization.

111121302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455415238 (or 455415236 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111121302212 its reverse (212203121111), we get a palindrome (323324423323).

The spelling of 111121302212 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred two thousand, two hundred twelve".