212013106 has 8 divisors (see below), whose sum is σ = 318502764. Its totient is φ = 105845520.

The previous prime is 212013101. The next prime is 212013107. The reversal of 212013106 is 601310212.

It can be written as a sum of positive squares in 2 ways, for example, as 206180881 + 5832225 = 14359^2 + 2415^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 212013106.

It is not an unprimeable number, because it can be changed into a prime (212013101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78865 + ... + 81508.

Almost surely, 2^212013106 is an apocalyptic number.

212013106 is a deficient number, since it is larger than the sum of its proper divisors (106489658).

212013106 is a wasteful number, since it uses less digits than its factorization.

212013106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161036.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 212013106 is about 14560.6698334932. The cubic root of 212013106 is about 596.2854828742.

Adding to 212013106 its reverse (601310212), we get a palindrome (813323318).

The spelling of 212013106 in words is "two hundred twelve million, thirteen thousand, one hundred six".