111122122002221 has 8 divisors (see below), whose sum is σ = 127604350624800. Its totient is φ = 95703262968240.

The previous prime is 111122122002217. The next prime is 111122122002223. The reversal of 111122122002221 is 122200221221111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111122122002221 - 2² = 111122122002217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111122122002193 and 111122122002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122122002223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265842396926 + ... + 265842397343.

It is an arithmetic number, because the mean of its divisors is an integer number (15950543828100).

Almost surely, 2^{111122122002221} is an apocalyptic number.

111122122002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111122122002221 is a deficient number, since it is larger than the sum of its proper divisors (16482228622579).

111122122002221 is a wasteful number, since it uses less digits than its factorization.

111122122002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531684794299.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111122122002221 its reverse (122200221221111), we get a palindrome (233322343223332).

The spelling of 111122122002221 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, two thousand, two hundred twenty-one".