213620012 has 6 divisors (see below), whose sum is σ = 373835028. Its totient is φ = 106810004.

The previous prime is 213619999. The next prime is 213620047. The reversal of 213620012 is 210026312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702498 + ... + 26702505.

It is an arithmetic number, because the mean of its divisors is an integer number (62305838).

Almost surely, 2^213620012 is an apocalyptic number.

It is an amenable number.

213620012 is a deficient number, since it is larger than the sum of its proper divisors (160215016).

213620012 is a wasteful number, since it uses less digits than its factorization.

213620012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53405007 (or 53405005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 213620012 is about 14615.7453453459. The cubic root of 213620012 is about 597.7881637272.

Adding to 213620012 its reverse (210026312), we get a palindrome (423646324).

The spelling of 213620012 in words is "two hundred thirteen million, six hundred twenty thousand, twelve".