122221122211222 has 16 divisors (see below), whose sum is σ = 186440044492800. Its totient is φ = 60074452319400.

The previous prime is 122221122211207. The next prime is 122221122211259. The reversal of 122221122211222 is 222112221122221.

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

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, 18944179 + ... + 24562657.

It is an arithmetic number, because the mean of its divisors is an integer number (11652502780800).

Almost surely, 2^{122221122211222} is an apocalyptic number.

122221122211222 is a deficient number, since it is larger than the sum of its proper divisors (64218922281578).

122221122211222 is a wasteful number, since it uses less digits than its factorization.

122221122211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802891.

The product of its digits is 1024, while the sum is 25.

Adding to 122221122211222 its reverse (222112221122221), we get a palindrome (344333343333443).

The spelling of 122221122211222 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twenty-two".