211211413 has 24 divisors (see below), whose sum is σ = 252346752. Its totient is φ = 176196384.

The previous prime is 211211381. The next prime is 211211419. The reversal of 211211413 is 314112112.

211211413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211211413 - 2⁵ = 211211381 is a prime.

It is a super-2 number, since 2×211211413² = 89220521962913138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433456 + ... + 433942.

It is an arithmetic number, because the mean of its divisors is an integer number (10514448).

Almost surely, 2^211211413 is an apocalyptic number.

It is an amenable number.

211211413 is a deficient number, since it is larger than the sum of its proper divisors (41135339).

211211413 is a wasteful number, since it uses less digits than its factorization.

211211413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 714 counting only the distinct ones).

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

The square root of 211211413 is about 14533.1143599712. The cubic root of 211211413 is about 595.5329480955.

Adding to 211211413 its reverse (314112112), we get a palindrome (525323525).

The spelling of 211211413 in words is "two hundred eleven million, two hundred eleven thousand, four hundred thirteen".