122211101112222 has 64 divisors (see below), whose sum is σ = 256171818240000. Its totient is φ = 38794426099968.

The previous prime is 122211101112097. The next prime is 122211101112263. The reversal of 122211101112222 is 222211101112221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152934804 + ... + 153731832.

It is an arithmetic number, because the mean of its divisors is an integer number (4002684660000).

Almost surely, 2^{122211101112222} is an apocalyptic number.

122211101112222 is an abundant number, since it is smaller than the sum of its proper divisors (133960717127778).

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

122211101112222 is a wasteful number, since it uses less digits than its factorization.

122211101112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801945.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122211101112222 its reverse (222211101112221), we get a palindrome (344422202224443).

Subtracting 122211101112222 from its reverse (222211101112221), we obtain a palindrome (99999999999999).

The spelling of 122211101112222 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred one million, one hundred twelve thousand, two hundred twenty-two".