122200221212 has 12 divisors (see below), whose sum is σ = 213854988480. Its totient is φ = 61098795936.

The previous prime is 122200221173. The next prime is 122200221239. The reversal of 122200221212 is 212122002221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102188 + ... + 504819.

It is an arithmetic number, because the mean of its divisors is an integer number (17821249040).

Almost surely, 2^122200221212 is an apocalyptic number.

It is an amenable number.

122200221212 is a deficient number, since it is larger than the sum of its proper divisors (91654767268).

122200221212 is a wasteful number, since it uses less digits than its factorization.

122200221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657340 (or 657338 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122200221212 its reverse (212122002221), we get a palindrome (334322223433).

The spelling of 122200221212 in words is "one hundred twenty-two billion, two hundred million, two hundred twenty-one thousand, two hundred twelve".