111212020000012 has 12 divisors (see below), whose sum is σ = 196406549083360. Its totient is φ = 55095863119056.

The previous prime is 111212019999959. The next prime is 111212020000019. The reversal of 111212020000012 is 210000020212111.

It is a super-2 number, since 2×111212020000012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111212019999947 and 111212020000001.

It is not an unprimeable number, because it can be changed into a prime (111212020000019) 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, 127536719748 + ... + 127536720619.

Almost surely, 2^{111212020000012} is an apocalyptic number.

It is an amenable number.

111212020000012 is a deficient number, since it is larger than the sum of its proper divisors (85194529083348).

111212020000012 is a wasteful number, since it uses less digits than its factorization.

111212020000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255073440480 (or 255073440478 counting only the distinct ones).

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

Adding to 111212020000012 its reverse (210000020212111), we get a palindrome (321212040212123).

The spelling of 111212020000012 in words is "one hundred eleven trillion, two hundred twelve billion, twenty million, twelve", and thus it is an aban number.