212013231206 has 8 divisors (see below), whose sum is σ = 363451253520. Its totient is φ = 90862813368.

The previous prime is 212013231187. The next prime is 212013231229. The reversal of 212013231206 is 602132310212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212013231206² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7571901101 + ... + 7571901128.

It is an arithmetic number, because the mean of its divisors is an integer number (45431406690).

Almost surely, 2^212013231206 is an apocalyptic number.

212013231206 is a deficient number, since it is larger than the sum of its proper divisors (151438022314).

212013231206 is a wasteful number, since it uses less digits than its factorization.

212013231206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143802238.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212013231206 its reverse (602132310212), we get a palindrome (814145541418).

The spelling of 212013231206 in words is "two hundred twelve billion, thirteen million, two hundred thirty-one thousand, two hundred six".