211213013 has 16 divisors (see below), whose sum is σ = 239500800. Its totient is φ = 184526400.

The previous prime is 211213007. The next prime is 211213021. The reversal of 211213013 is 310312112.

It is a cyclic number.

It is not a de Polignac number, because 211213013 - 2¹⁰ = 211211989 is a prime.

It is a super-2 number, since 2×211213013² = 89221873721076338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48731 + ... + 52887.

It is an arithmetic number, because the mean of its divisors is an integer number (14968800).

Almost surely, 2^211213013 is an apocalyptic number.

It is an amenable number.

211213013 is a deficient number, since it is larger than the sum of its proper divisors (28287787).

211213013 is a wasteful number, since it uses less digits than its factorization.

211213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 211213013 is about 14533.1694065679. The cubic root of 211213013 is about 595.5344518815.

Adding to 211213013 its reverse (310312112), we get a palindrome (521525125).

Subtracting 211213013 from its reverse (310312112), we obtain a palindrome (99099099).

The spelling of 211213013 in words is "two hundred eleven million, two hundred thirteen thousand, thirteen".