121222254 has 8 divisors (see below), whose sum is σ = 242444520. Its totient is φ = 40407416.

The previous prime is 121222253. The next prime is 121222273. The reversal of 121222254 is 452222121.

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

121222254 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121222254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222253) 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, 10101849 + ... + 10101860.

It is an arithmetic number, because the mean of its divisors is an integer number (30305565).

Almost surely, 2^121222254 is an apocalyptic number.

121222254 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.

121222254 is a wasteful number, since it uses less digits than its factorization.

121222254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203714.

The product of its digits is 640, while the sum is 21.

The square root of 121222254 is about 11010.0978197289. The cubic root of 121222254 is about 494.9113931799.

Adding to 121222254 its reverse (452222121), we get a palindrome (573444375).

It can be divided in two parts, 12 and 1222254, that added together give a triangular number (1222266 = T₁₅₆₃).

The spelling of 121222254 in words is "one hundred twenty-one million, two hundred twenty-two thousand, two hundred fifty-four".