2212101211222 has 48 divisors (see below), whose sum is σ = 4104930417840. Its totient is φ = 888887043072.

The previous prime is 2212101211207. The next prime is 2212101211223. The reversal of 2212101211222 is 2221121012122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2212101211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212101211223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5943223 + ... + 6304450.

It is an arithmetic number, because the mean of its divisors is an integer number (85519383705).

Almost surely, 2^{2212101211222} is an apocalyptic number.

2212101211222 is a deficient number, since it is larger than the sum of its proper divisors (1892829206618).

2212101211222 is a wasteful number, since it uses less digits than its factorization.

2212101211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12247805 (or 12247798 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2212101211222 its reverse (2221121012122), we get a palindrome (4433222223344).

The spelling of 2212101211222 in words is "two trillion, two hundred twelve billion, one hundred one million, two hundred eleven thousand, two hundred twenty-two".