122121122112212 has 48 divisors (see below), whose sum is σ = 215282492956608. Its totient is φ = 60612623136000.

The previous prime is 122121122112203. The next prime is 122121122112257. The reversal of 122121122112212 is 212211221121221.

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 15 ways as a sum of consecutive naturals, for example, 3066269843 + ... + 3066309669.

It is an arithmetic number, because the mean of its divisors is an integer number (4485051936596).

Almost surely, 2^{122121122112212} is an apocalyptic number.

It is an amenable number.

122121122112212 is a deficient number, since it is larger than the sum of its proper divisors (93161370844396).

122121122112212 is a wasteful number, since it uses less digits than its factorization.

122121122112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44616 (or 44614 counting only the distinct ones).

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

Adding to 122121122112212 its reverse (212211221121221), we get a palindrome (334332343233433).

Subtracting 122121122112212 from its reverse (212211221121221), we obtain a palindrome (90090099009009).

The spelling of 122121122112212 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twelve".