111012111212 has 6 divisors (see below), whose sum is σ = 194271194628. Its totient is φ = 55506055604.

The previous prime is 111012111209. The next prime is 111012111233. The reversal of 111012111212 is 212111210111.

It is a super-2 number, since 2×111012111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876513898 + ... + 13876513905.

It is an arithmetic number, because the mean of its divisors is an integer number (32378532438).

Almost surely, 2^111012111212 is an apocalyptic number.

It is an amenable number.

111012111212 is a deficient number, since it is larger than the sum of its proper divisors (83259083416).

111012111212 is a wasteful number, since it uses less digits than its factorization.

111012111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27753027807 (or 27753027805 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111012111212 its reverse (212111210111), we get a palindrome (323123321323).

The spelling of 111012111212 in words is "one hundred eleven billion, twelve million, one hundred eleven thousand, two hundred twelve".