122201222212 has 6 divisors (see below), whose sum is σ = 213852138878. Its totient is φ = 61100611104.

The previous prime is 122201222201. The next prime is 122201222233. The reversal of 122201222212 is 212222102221.

It can be written as a sum of positive squares in only one way, i.e., 121183356996 + 1017865216 = 348114^2 + 31904^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122201222212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15275152773 + ... + 15275152780.

Almost surely, 2^122201222212 is an apocalyptic number.

It is an amenable number.

122201222212 is a deficient number, since it is larger than the sum of its proper divisors (91650916666).

122201222212 is a wasteful number, since it uses less digits than its factorization.

122201222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30550305557 (or 30550305555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122201222212 its reverse (212222102221), we get a palindrome (334423324433).

The spelling of 122201222212 in words is "one hundred twenty-two billion, two hundred one million, two hundred twenty-two thousand, two hundred twelve".