122221122222012 has 48 divisors (see below), whose sum is σ = 311110032172800. Its totient is φ = 37036498815360.

The previous prime is 122221122222011. The next prime is 122221122222047. The reversal of 122221122222012 is 210222221122221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221122222011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22301064 + ... + 27235632.

It is an arithmetic number, because the mean of its divisors is an integer number (6481459003600).

Almost surely, 2^{122221122222012} is an apocalyptic number.

122221122222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122221122222012 is an abundant number, since it is smaller than the sum of its proper divisors (188888909950788).

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

122221122222012 is a wasteful number, since it uses less digits than its factorization.

122221122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122226 (or 5122224 counting only the distinct ones).

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

Adding to 122221122222012 its reverse (210222221122221), we get a palindrome (332443343344233).

The spelling of 122221122222012 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".