211211013 has 32 divisors (see below), whose sum is σ = 311592960. Its totient is φ = 126463680.

The previous prime is 211210963. The next prime is 211211017. The reversal of 211211013 is 310112112.

It is not a de Polignac number, because 211211013 - 2¹⁷ = 211079941 is a prime.

It is a super-2 number, since 2×211211013² = 89220184024972338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 229368 + ... + 230286.

It is an arithmetic number, because the mean of its divisors is an integer number (9737280).

Almost surely, 2^211211013 is an apocalyptic number.

It is an amenable number.

211211013 is a deficient number, since it is larger than the sum of its proper divisors (100381947).

211211013 is a wasteful number, since it uses less digits than its factorization.

211211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 211211013 is about 14533.1005982894. The cubic root of 211211013 is about 595.5325721478.

Adding to 211211013 its reverse (310112112), we get a palindrome (521323125).

The spelling of 211211013 in words is "two hundred eleven million, two hundred eleven thousand, thirteen".