122100120001212 has 24 divisors (see below), whose sum is σ = 292600287571536. Its totient is φ = 39600038919168.

The previous prime is 122100120001199. The next prime is 122100120001219. The reversal of 122100120001212 is 212100021001221.

It is a junction number, because it is equal to n+sod(n) for n = 122100120001191 and 122100120001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100120001219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137500134693 + ... + 137500135580.

It is an arithmetic number, because the mean of its divisors is an integer number (12191678648814).

Almost surely, 2^{122100120001212} is an apocalyptic number.

122100120001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122100120001212 is an abundant number, since it is smaller than the sum of its proper divisors (170500167570324).

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

122100120001212 is a wasteful number, since it uses less digits than its factorization.

122100120001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275000270317 (or 275000270315 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122100120001212 its reverse (212100021001221), we get a palindrome (334200141002433).

The spelling of 122100120001212 in words is "one hundred twenty-two trillion, one hundred billion, one hundred twenty million, one thousand, two hundred twelve".