121223323221222 has 64 divisors (see below), whose sum is σ = 250724956536000. Its totient is φ = 39043308648960.

The previous prime is 121223323221211. The next prime is 121223323221233. The reversal of 121223323221222 is 222122323322121.

121223323221222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121223323221211) and next prime (121223323221233).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 121223323221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152456904 + ... + 153249972.

It is an arithmetic number, because the mean of its divisors is an integer number (3917577445875).

Almost surely, 2^{121223323221222} is an apocalyptic number.

121223323221222 is an abundant number, since it is smaller than the sum of its proper divisors (129501633314778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121223323221222 is a wasteful number, since it uses less digits than its factorization.

121223323221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797881.

The product of its digits is 13824, while the sum is 30.

Adding to 121223323221222 its reverse (222122323322121), we get a palindrome (343345646543343).

The spelling of 121223323221222 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty-two".