1002211211211 has 16 divisors (see below), whose sum is σ = 1528618399488. Its totient is φ = 572152341600.

The previous prime is 1002211211171. The next prime is 1002211211227. The reversal of 1002211211211 is 1121121122001.

It is a happy number.

It is not a de Polignac number, because 1002211211211 - 2²¹ = 1002209114059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002211211231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22467985 + ... + 22512546.

It is an arithmetic number, because the mean of its divisors is an integer number (95538649968).

Almost surely, 2^{1002211211211} is an apocalyptic number.

1002211211211 is a deficient number, since it is larger than the sum of its proper divisors (526407188277).

1002211211211 is a wasteful number, since it uses less digits than its factorization.

1002211211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44981602.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1002211211211 its reverse (1121121122001), we get a palindrome (2123332333212).

The spelling of 1002211211211 in words is "one trillion, two billion, two hundred eleven million, two hundred eleven thousand, two hundred eleven".