121321222 has 8 divisors (see below), whose sum is σ = 198525672. Its totient is φ = 55146000.

The previous prime is 121321177. The next prime is 121321229. The reversal of 121321222 is 222123121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121321196 and 121321205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2757279 + ... + 2757322.

It is an arithmetic number, because the mean of its divisors is an integer number (24815709).

Almost surely, 2^121321222 is an apocalyptic number.

121321222 is a deficient number, since it is larger than the sum of its proper divisors (77204450).

121321222 is a wasteful number, since it uses less digits than its factorization.

121321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514614.

The product of its digits is 96, while the sum is 16.

The square root of 121321222 is about 11014.5913224232. The cubic root of 121321222 is about 495.0460413590.

Adding to 121321222 its reverse (222123121), we get a palindrome (343444343).

The spelling of 121321222 in words is "one hundred twenty-one million, three hundred twenty-one thousand, two hundred twenty-two".