110111222121012 has 216 divisors, whose sum is σ = 349507031328000. Its totient is φ = 29054834911872.

The previous prime is 110111222120947. The next prime is 110111222121023. The reversal of 110111222121012 is 210121222111011.

It is a happy number.

110111222121012 is a `hidden beast` number, since 110 + 1 + 112 + 221 + 210 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 45616012 + ... + 47969187.

It is an arithmetic number, because the mean of its divisors is an integer number (1618088108000).

Almost surely, 2^{110111222121012} is an apocalyptic number.

110111222121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

110111222121012 is an abundant number, since it is smaller than the sum of its proper divisors (239395809206988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110111222121012 is a wasteful number, since it uses less digits than its factorization.

110111222121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93585275 (or 93585263 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 110111222121012 its reverse (210121222111011), we get a palindrome (320232444232023).

The spelling of 110111222121012 in words is "one hundred ten trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, twelve".