20002212212212 has 6 divisors (see below), whose sum is σ = 35003871371378. Its totient is φ = 10001106106104.

The previous prime is 20002212212209. The next prime is 20002212212251. The reversal of 20002212212212 is 21221221220002.

It can be written as a sum of positive squares in only one way, i.e., 11322377035876 + 8679835176336 = 3364874^2 + 2946156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20002212212212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500276526523 + ... + 2500276526530.

Almost surely, 2^{20002212212212} is an apocalyptic number.

It is an amenable number.

20002212212212 is a deficient number, since it is larger than the sum of its proper divisors (15001659159166).

20002212212212 is a wasteful number, since it uses less digits than its factorization.

20002212212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000553053057 (or 5000553053055 counting only the distinct ones).

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

Adding to 20002212212212 its reverse (21221221220002), we get a palindrome (41223433432214).

It can be divided in two parts, 20002 and 212212212, that multiplied together give a palindrome (4244668664424).

The spelling of 20002212212212 in words is "twenty trillion, two billion, two hundred twelve million, two hundred twelve thousand, two hundred twelve".