212073227 has 4 divisors (see below), whose sum is σ = 212112480. Its totient is φ = 212033976.

The previous prime is 212073187. The next prime is 212073241. The reversal of 212073227 is 722370212.

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

It is a cyclic number.

It is not a de Polignac number, because 212073227 - 2¹⁴ = 212056843 is a prime.

It is a super-2 number, since 2×212073227² = 89950107220387058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212073196 and 212073205.

It is not an unprimeable number, because it can be changed into a prime (212073247) 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, 9923 + ... + 22860.

It is an arithmetic number, because the mean of its divisors is an integer number (53028120).

Almost surely, 2^212073227 is an apocalyptic number.

212073227 is a deficient number, since it is larger than the sum of its proper divisors (39253).

212073227 is an equidigital number, since it uses as much as digits as its factorization.

212073227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39252.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 212073227 is about 14562.7341869582. The cubic root of 212073227 is about 596.3418408546.

The spelling of 212073227 in words is "two hundred twelve million, seventy-three thousand, two hundred twenty-seven".