2201211221012 has 12 divisors (see below), whose sum is σ = 3852263127636. Its totient is φ = 1100564613120.

The previous prime is 2201211220993. The next prime is 2201211221023. The reversal of 2201211221012 is 2101221121022.

It can be written as a sum of positive squares in 2 ways, for example, as 973999243396 + 1227211977616 = 986914^2 + 1107796^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10128383 + ... + 10343430.

It is an arithmetic number, because the mean of its divisors is an integer number (321021927303).

Almost surely, 2^{2201211221012} is an apocalyptic number.

It is an amenable number.

2201211221012 is a deficient number, since it is larger than the sum of its proper divisors (1651051906624).

2201211221012 is a wasteful number, since it uses less digits than its factorization.

2201211221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498698 (or 20498696 counting only the distinct ones).

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

Adding to 2201211221012 its reverse (2101221121022), we get a palindrome (4302432342034).

The spelling of 2201211221012 in words is "two trillion, two hundred one billion, two hundred eleven million, two hundred twenty-one thousand, twelve".