212262226 has 16 divisors (see below), whose sum is σ = 347776128. Its totient is φ = 96361200.

The previous prime is 212262217. The next prime is 212262227. The reversal of 212262226 is 622262212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212262226.

It is not an unprimeable number, because it can be changed into a prime (212262227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13111 + ... + 24421.

It is an arithmetic number, because the mean of its divisors is an integer number (21736008).

Almost surely, 2^212262226 is an apocalyptic number.

212262226 is a deficient number, since it is larger than the sum of its proper divisors (135513902).

212262226 is a wasteful number, since it uses less digits than its factorization.

212262226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12177.

The product of its digits is 2304, while the sum is 25.

The square root of 212262226 is about 14569.2218735250. The cubic root of 212262226 is about 596.5189409190.

The spelling of 212262226 in words is "two hundred twelve million, two hundred sixty-two thousand, two hundred twenty-six".