2212110221012 has 6 divisors (see below), whose sum is σ = 3871192886778. Its totient is φ = 1106055110504.

The previous prime is 2212110220987. The next prime is 2212110221017. The reversal of 2212110221012 is 2101220112122.

It can be written as a sum of positive squares in only one way, i.e., 2197468252996 + 14641968016 = 1482386^2 + 121004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212110221017) 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 as a sum of consecutive naturals, namely, 276513777623 + ... + 276513777630.

It is an arithmetic number, because the mean of its divisors is an integer number (645198814463).

Almost surely, 2^{2212110221012} is an apocalyptic number.

It is an amenable number.

2212110221012 is a deficient number, since it is larger than the sum of its proper divisors (1659082665766).

2212110221012 is a wasteful number, since it uses less digits than its factorization.

2212110221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553027555257 (or 553027555255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2212110221012 its reverse (2101220112122), we get a palindrome (4313330333134).

The spelling of 2212110221012 in words is "two trillion, two hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, twelve".