212212228106 has 4 divisors (see below), whose sum is σ = 318318342162. Its totient is φ = 106106114052.

The previous prime is 212212228087. The next prime is 212212228117. The reversal of 212212228106 is 601822212212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 164093857225 + 48118370881 = 405085^2 + 219359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53053057025 + ... + 53053057028.

Almost surely, 2^212212228106 is an apocalyptic number.

212212228106 is a deficient number, since it is larger than the sum of its proper divisors (106106114056).

212212228106 is a wasteful number, since it uses less digits than its factorization.

212212228106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106106114055.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 212212228106 in words is "two hundred twelve billion, two hundred twelve million, two hundred twenty-eight thousand, one hundred six".