212273306 has 16 divisors (see below), whose sum is σ = 375636480. Its totient is φ = 88039440.

The previous prime is 212273251. The next prime is 212273311. The reversal of 212273306 is 603372212.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244121 + ... + 244988.

It is an arithmetic number, because the mean of its divisors is an integer number (23477280).

Almost surely, 2^212273306 is an apocalyptic number.

212273306 is a deficient number, since it is larger than the sum of its proper divisors (163363174).

212273306 is a wasteful number, since it uses less digits than its factorization.

212273306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489149.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 212273306 is about 14569.6021222269. The cubic root of 212273306 is about 596.5293200853.

The spelling of 212273306 in words is "two hundred twelve million, two hundred seventy-three thousand, three hundred six".