211221221102002 has 8 divisors (see below), whose sum is σ = 316909239882156. Its totient is φ = 105584807807952.

The previous prime is 211221221101997. The next prime is 211221221102039. The reversal of 211221221102002 is 200201122122112.

It can be written as a sum of positive squares in 2 ways, for example, as 174164794516801 + 37056426585201 = 13197151^2 + 6087399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211221221102002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12901361293 + ... + 12901377664.

Almost surely, 2^{211221221102002} is an apocalyptic number.

211221221102002 is a deficient number, since it is larger than the sum of its proper divisors (105688018780154).

211221221102002 is a wasteful number, since it uses less digits than its factorization.

211221221102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25802743052.

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

Adding to 211221221102002 its reverse (200201122122112), we get a palindrome (411422343224114).

The spelling of 211221221102002 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred two thousand, two".