122001221222 has 16 divisors (see below), whose sum is σ = 187479163872. Its totient is φ = 59508386880.

The previous prime is 122001221201. The next prime is 122001221261. The reversal of 122001221222 is 222122100221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122001221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246223 + ... + 1340549.

It is an arithmetic number, because the mean of its divisors is an integer number (11717447742).

Almost surely, 2^122001221222 is an apocalyptic number.

122001221222 is a deficient number, since it is larger than the sum of its proper divisors (65477942650).

122001221222 is a wasteful number, since it uses less digits than its factorization.

122001221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110143.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122001221222 its reverse (222122100221), we get a palindrome (344123321443).

The spelling of 122001221222 in words is "one hundred twenty-two billion, one million, two hundred twenty-one thousand, two hundred twenty-two".