111210212012 has 12 divisors (see below), whose sum is σ = 194622210216. Its totient is φ = 55603866240.

The previous prime is 111210211997. The next prime is 111210212021. The reversal of 111210212012 is 210212012111.

It is a super-2 number, since 2×111210212012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90914 + ... + 480297.

It is an arithmetic number, because the mean of its divisors is an integer number (16218517518).

Almost surely, 2^111210212012 is an apocalyptic number.

It is an amenable number.

111210212012 is a deficient number, since it is larger than the sum of its proper divisors (83411998204).

111210212012 is a wasteful number, since it uses less digits than its factorization.

111210212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619888 (or 619886 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111210212012 its reverse (210212012111), we get a palindrome (321422224123).

It can be divided in two parts, 111 and 210212012, that multiplied together give a palindrome (23333533332).

The spelling of 111210212012 in words is "one hundred eleven billion, two hundred ten million, two hundred twelve thousand, twelve".