111000020001212 has 24 divisors (see below), whose sum is σ = 197409724609104. Its totient is φ = 54599430074112.

The previous prime is 111000020001209. The next prime is 111000020001217. The reversal of 111000020001212 is 212100020000111.

It is a junction number, because it is equal to n+sod(n) for n = 111000020001193 and 111000020001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000020001217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273363293 + ... + 273769044.

It is an arithmetic number, because the mean of its divisors is an integer number (8225405192046).

Almost surely, 2^{111000020001212} is an apocalyptic number.

It is an amenable number.

111000020001212 is a deficient number, since it is larger than the sum of its proper divisors (86409704607892).

111000020001212 is a wasteful number, since it uses less digits than its factorization.

111000020001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547133165 (or 547133163 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111000020001212 its reverse (212100020000111), we get a palindrome (323100040001323).

The spelling of 111000020001212 in words is "one hundred eleven trillion, twenty million, one thousand, two hundred twelve".