121236222 has 8 divisors (see below), whose sum is σ = 242472456. Its totient is φ = 40412072.

The previous prime is 121236187. The next prime is 121236223. The reversal of 121236222 is 222632121.

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

121236222 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121236223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10103013 + ... + 10103024.

It is an arithmetic number, because the mean of its divisors is an integer number (30309057).

Almost surely, 2^121236222 is an apocalyptic number.

121236222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121236222 is a wasteful number, since it uses less digits than its factorization.

121236222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20206042.

The product of its digits is 576, while the sum is 21.

The square root of 121236222 is about 11010.7321282465. The cubic root of 121236222 is about 494.9304013972.

Adding to 121236222 its reverse (222632121), we get a palindrome (343868343).

The spelling of 121236222 in words is "one hundred twenty-one million, two hundred thirty-six thousand, two hundred twenty-two".