213144212 has 24 divisors (see below), whose sum is σ = 378672000. Its totient is φ = 104959296.

The previous prime is 213144209. The next prime is 213144221. The reversal of 213144212 is 212441312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202664 + ... + 203712.

It is an arithmetic number, because the mean of its divisors is an integer number (15778000).

Almost surely, 2^213144212 is an apocalyptic number.

It is an amenable number.

213144212 is a deficient number, since it is larger than the sum of its proper divisors (165527788).

213144212 is a wasteful number, since it uses less digits than its factorization.

213144212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1773 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 213144212 is about 14599.4593050565. The cubic root of 213144212 is about 597.3440120803.

Adding to 213144212 its reverse (212441312), we get a palindrome (425585524).

The spelling of 213144212 in words is "two hundred thirteen million, one hundred forty-four thousand, two hundred twelve".