111443442201212 has 24 divisors (see below), whose sum is σ = 212767642687152. Its totient is φ = 50653257638400.

The previous prime is 111443442201197. The next prime is 111443442201227. The reversal of 111443442201212 is 212102244344111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111443442201197) and next prime (111443442201227).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70520963 + ... + 72083930.

It is an arithmetic number, because the mean of its divisors is an integer number (8865318445298).

Almost surely, 2^{111443442201212} is an apocalyptic number.

It is an amenable number.

111443442201212 is a deficient number, since it is larger than the sum of its proper divisors (101324200485940).

111443442201212 is a wasteful number, since it uses less digits than its factorization.

111443442201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142622669 (or 142622667 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 111443442201212 its reverse (212102244344111), we get a palindrome (323545686545323).

The spelling of 111443442201212 in words is "one hundred eleven trillion, four hundred forty-three billion, four hundred forty-two million, two hundred one thousand, two hundred twelve".