1211003004211 has 128 divisors (see below), whose sum is σ = 1694495158272. Its totient is φ = 842262220800.

The previous prime is 1211003004191. The next prime is 1211003004221. The reversal of 1211003004211 is 1124003001121.

It is not a de Polignac number, because 1211003004211 - 2⁵ = 1211003004179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211003004221) 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 127 ways as a sum of consecutive naturals, for example, 455776995 + ... + 455779651.

It is an arithmetic number, because the mean of its divisors is an integer number (13238243424).

Almost surely, 2^{1211003004211} is an apocalyptic number.

1211003004211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211003004211 is a deficient number, since it is larger than the sum of its proper divisors (483492154061).

1211003004211 is a wasteful number, since it uses less digits than its factorization.

1211003004211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1211003004211 its reverse (1124003001121), we get a palindrome (2335006005332).

The spelling of 1211003004211 in words is "one trillion, two hundred eleven billion, three million, four thousand, two hundred eleven".