111202120012 has 6 divisors (see below), whose sum is σ = 194603710028. Its totient is φ = 55601060004.

The previous prime is 111202119949. The next prime is 111202120013. The reversal of 111202120012 is 210021202111.

It is a super-2 number, since 2×111202120012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111202119974 and 111202120001.

It is not an unprimeable number, because it can be changed into a prime (111202120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900264998 + ... + 13900265005.

Almost surely, 2^111202120012 is an apocalyptic number.

It is an amenable number.

111202120012 is a deficient number, since it is larger than the sum of its proper divisors (83401590016).

111202120012 is a wasteful number, since it uses less digits than its factorization.

111202120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27800530007 (or 27800530005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111202120012 its reverse (210021202111), we get a palindrome (321223322123).

The spelling of 111202120012 in words is "one hundred eleven billion, two hundred two million, one hundred twenty thousand, twelve".