111212000102212 has 6 divisors (see below), whose sum is σ = 194621000178878. Its totient is φ = 55606000051104.

The previous prime is 111212000102173. The next prime is 111212000102213. The reversal of 111212000102212 is 212201000212111.

It can be written as a sum of positive squares in only one way, i.e., 96012091627776 + 15199908474436 = 9798576^2 + 3898706^2 .

It is not an unprimeable number, because it can be changed into a prime (111212000102213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901500012773 + ... + 13901500012780.

Almost surely, 2^{111212000102212} is an apocalyptic number.

It is an amenable number.

111212000102212 is a deficient number, since it is larger than the sum of its proper divisors (83409000076666).

111212000102212 is a wasteful number, since it uses less digits than its factorization.

111212000102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27803000025557 (or 27803000025555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111212000102212 its reverse (212201000212111), we get a palindrome (323413000314323).

The spelling of 111212000102212 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred two thousand, two hundred twelve".