122221221021222 has 8 divisors (see below), whose sum is σ = 244442442042456. Its totient is φ = 40740407007072.

The previous prime is 122221221021121. The next prime is 122221221021281. The reversal of 122221221021222 is 222120122122221.

It is a happy number.

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

122221221021222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 122221221021192 and 122221221021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10185101751763 + ... + 10185101751774.

It is an arithmetic number, because the mean of its divisors is an integer number (30555305255307).

Almost surely, 2^{122221221021222} is an apocalyptic number.

122221221021222 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.

122221221021222 is a wasteful number, since it uses less digits than its factorization.

122221221021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20370203503542.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 122221221021222 its reverse (222120122122221), we get a palindrome (344341343143443).

The spelling of 122221221021222 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-two".