122101221212 has 12 divisors (see below), whose sum is σ = 218646373176. Its totient is φ = 59630828880.

The previous prime is 122101221211. The next prime is 122101221223. The reversal of 122101221212 is 212122101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354945239 + ... + 354945582.

It is an arithmetic number, because the mean of its divisors is an integer number (18220531098).

Almost surely, 2^122101221212 is an apocalyptic number.

It is an amenable number.

122101221212 is a deficient number, since it is larger than the sum of its proper divisors (96545151964).

122101221212 is a wasteful number, since it uses less digits than its factorization.

122101221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709890868 (or 709890866 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122101221212 its reverse (212122101221), we get a palindrome (334223322433).

It can be divided in two parts, 122101221 and 212, that multiplied together give a palindrome (25885458852).

The spelling of 122101221212 in words is "one hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, two hundred twelve".