122212111221212 has 24 divisors (see below), whose sum is σ = 215563871631360. Its totient is φ = 60622472237040.

The previous prime is 122212111221209. The next prime is 122212111221227. The reversal of 122212111221212 is 212122111212221.

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, 7873787 + ... + 17504877.

It is an arithmetic number, because the mean of its divisors is an integer number (8981827984640).

Almost surely, 2^{122212111221212} is an apocalyptic number.

It is an amenable number.

122212111221212 is a deficient number, since it is larger than the sum of its proper divisors (93351760410148).

122212111221212 is a wasteful number, since it uses less digits than its factorization.

122212111221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656201 (or 9656199 counting only the distinct ones).

The product of its digits is 256, while the sum is 23.

Adding to 122212111221212 its reverse (212122111212221), we get a palindrome (334334222433433).

The spelling of 122212111221212 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".