121145222 has 8 divisors (see below), whose sum is σ = 198237672. Its totient is φ = 55066000.

The previous prime is 121145203. The next prime is 121145237. The reversal of 121145222 is 222541121.

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

It is a super-3 number, since 3×121145222³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121145194 and 121145203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2753279 + ... + 2753322.

It is an arithmetic number, because the mean of its divisors is an integer number (24779709).

Almost surely, 2^121145222 is an apocalyptic number.

121145222 is a deficient number, since it is larger than the sum of its proper divisors (77092450).

121145222 is a wasteful number, since it uses less digits than its factorization.

121145222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506614.

The product of its digits is 320, while the sum is 20.

The square root of 121145222 is about 11006.5990205876. The cubic root of 121145222 is about 494.8065386902.

Adding to 121145222 its reverse (222541121), we get a palindrome (343686343).

The spelling of 121145222 in words is "one hundred twenty-one million, one hundred forty-five thousand, two hundred twenty-two".