121323221222 has 8 divisors (see below), whose sum is σ = 207982664976. Its totient is φ = 51995666232.

The previous prime is 121323221221. The next prime is 121323221233. The reversal of 121323221222 is 222122323121.

It is a happy number.

121323221222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (121323221221) 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, 4332972173 + ... + 4332972200.

It is an arithmetic number, because the mean of its divisors is an integer number (25997833122).

Almost surely, 2^121323221222 is an apocalyptic number.

121323221222 is a deficient number, since it is larger than the sum of its proper divisors (86659443754).

121323221222 is an equidigital number, since it uses as much as digits as its factorization.

121323221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665944382.

The product of its digits is 1152, while the sum is 23.

Adding to 121323221222 its reverse (222122323121), we get a palindrome (343445544343).

The spelling of 121323221222 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty-two".