1222212002212 has 12 divisors (see below), whose sum is σ = 2138907217356. Its totient is φ = 611095654400.

The previous prime is 1222212002183. The next prime is 1222212002227. The reversal of 1222212002212 is 2122002122221.

It can be written as a sum of positive squares in 2 ways, for example, as 844498509156 + 377713493056 = 918966^2 + 614584^2 .

It is a super-3 number, since 3×1222212002212³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222212002212.

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, 2317789 + ... + 2795812.

It is an arithmetic number, because the mean of its divisors is an integer number (178242268113).

Almost surely, 2^{1222212002212} is an apocalyptic number.

It is an amenable number.

1222212002212 is a deficient number, since it is larger than the sum of its proper divisors (916695215144).

1222212002212 is a wasteful number, since it uses less digits than its factorization.

1222212002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173358 (or 5173356 counting only the distinct ones).

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

Adding to 1222212002212 its reverse (2122002122221), we get a palindrome (3344214124433).

The spelling of 1222212002212 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, two thousand, two hundred twelve".