111222001202121 has 48 divisors (see below), whose sum is σ = 167065869155328. Its totient is φ = 71224262323200.

The previous prime is 111222001202083. The next prime is 111222001202131. The reversal of 111222001202121 is 121202100222111.

111222001202121 is a `hidden beast` number, since 1 + 112 + 220 + 0 + 120 + 212 + 1 = 666.

It is not a de Polignac number, because 111222001202121 - 2⁶ = 111222001202057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111222001202094 and 111222001202103.

It is not an unprimeable number, because it can be changed into a prime (111222001202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 345413220 + ... + 345735066.

It is an arithmetic number, because the mean of its divisors is an integer number (3480538940736).

Almost surely, 2^{111222001202121} is an apocalyptic number.

It is an amenable number.

111222001202121 is a deficient number, since it is larger than the sum of its proper divisors (55843867953207).

111222001202121 is a wasteful number, since it uses less digits than its factorization.

111222001202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331062 (or 331059 counting only the distinct ones).

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

Adding to 111222001202121 its reverse (121202100222111), we get a palindrome (232424101424232).

The spelling of 111222001202121 in words is "one hundred eleven trillion, two hundred twenty-two billion, one million, two hundred two thousand, one hundred twenty-one".