2221201011212 has 24 divisors (see below), whose sum is σ = 3889847403120. Its totient is φ = 1109816326080.

The previous prime is 2221201011181. The next prime is 2221201011223. The reversal of 2221201011212 is 2121101021222.

It is a super-2 number, since 2×2221201011212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33631262 + ... + 33697242.

It is an arithmetic number, because the mean of its divisors is an integer number (162076975130).

Almost surely, 2^{2221201011212} is an apocalyptic number.

It is an amenable number.

2221201011212 is a deficient number, since it is larger than the sum of its proper divisors (1668646391908).

2221201011212 is a wasteful number, since it uses less digits than its factorization.

2221201011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71801 (or 71799 counting only the distinct ones).

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

Adding to 2221201011212 its reverse (2121101021222), we get a palindrome (4342302032434).

The spelling of 2221201011212 in words is "two trillion, two hundred twenty-one billion, two hundred one million, eleven thousand, two hundred twelve".