1222102220212 has 12 divisors (see below), whose sum is σ = 2138701347076. Its totient is φ = 611044692480.

The previous prime is 1222102220173. The next prime is 1222102220219. The reversal of 1222102220212 is 2120222012221.

It can be written as a sum of positive squares in 2 ways, for example, as 533726680356 + 688375539856 = 730566^2 + 829684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1222102220212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222102220219) 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, 1162413 + ... + 1948180.

Almost surely, 2^{1222102220212} is an apocalyptic number.

It is an amenable number.

1222102220212 is a deficient number, since it is larger than the sum of its proper divisors (916599126864).

1222102220212 is a wasteful number, since it uses less digits than its factorization.

1222102220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208818 (or 3208816 counting only the distinct ones).

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

Adding to 1222102220212 its reverse (2120222012221), we get a palindrome (3342324232433).

The spelling of 1222102220212 in words is "one trillion, two hundred twenty-two billion, one hundred two million, two hundred twenty thousand, two hundred twelve".