2211122201212 has 12 divisors (see below), whose sum is σ = 4097079372960. Its totient is φ = 1040528094656.

The previous prime is 2211122201179. The next prime is 2211122201213. The reversal of 2211122201212 is 2121022211122.

It is a super-2 number, since 2×2211122201212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2211122201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211122201213) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 16258251412 + ... + 16258251547.

It is an arithmetic number, because the mean of its divisors is an integer number (341423281080).

Almost surely, 2^{2211122201212} is an apocalyptic number.

It is an amenable number.

2211122201212 is a deficient number, since it is larger than the sum of its proper divisors (1885957171748).

2211122201212 is a wasteful number, since it uses less digits than its factorization.

2211122201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32516502980 (or 32516502978 counting only the distinct ones).

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

Adding to 2211122201212 its reverse (2121022211122), we get a palindrome (4332144412334).

The spelling of 2211122201212 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, two hundred one thousand, two hundred twelve".