110001212121222 has 24 divisors (see below), whose sum is σ = 244777472018976. Its totient is φ = 35676068795856.

The previous prime is 110001212121217. The next prime is 110001212121233. The reversal of 110001212121222 is 222121212100011.

110001212121222 is a `hidden beast` number, since 110 + 0 + 0 + 1 + 212 + 121 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 110001212121195 and 110001212121204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82583491918 + ... + 82583493249.

It is an arithmetic number, because the mean of its divisors is an integer number (10199061334124).

Almost surely, 2^{110001212121222} is an apocalyptic number.

110001212121222 is an abundant number, since it is smaller than the sum of its proper divisors (134776259897754).

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

110001212121222 is a wasteful number, since it uses less digits than its factorization.

110001212121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165166985212 (or 165166985209 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 110001212121222 its reverse (222121212100011), we get a palindrome (332122424221233).

The spelling of 110001212121222 in words is "one hundred ten trillion, one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".