121201222 has 8 divisors (see below), whose sum is σ = 184883400. Its totient is φ = 59573424.

The previous prime is 121201217. The next prime is 121201229. The reversal of 121201222 is 222102121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201229) by changing a digit.

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, 513447 + ... + 513682.

It is an arithmetic number, because the mean of its divisors is an integer number (23110425).

Almost surely, 2^121201222 is an apocalyptic number.

121201222 is a deficient number, since it is larger than the sum of its proper divisors (63682178).

121201222 is a wasteful number, since it uses less digits than its factorization.

121201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027190.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121201222 is about 11009.1426550845. The cubic root of 121201222 is about 494.8827692320.

Adding to 121201222 its reverse (222102121), we get a palindrome (343303343).

The spelling of 121201222 in words is "one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".