501212227 has 4 divisors (see below), whose sum is σ = 501367096. Its totient is φ = 501057360.

The previous prime is 501212219. The next prime is 501212263. The reversal of 501212227 is 722212105.

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 501212227 - 2³ = 501212219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501212198 and 501212207.

It is not an unprimeable number, because it can be changed into a prime (501212287) 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, 72474 + ... + 79087.

It is an arithmetic number, because the mean of its divisors is an integer number (125341774).

Almost surely, 2^501212227 is an apocalyptic number.

501212227 is a deficient number, since it is larger than the sum of its proper divisors (154869).

501212227 is a wasteful number, since it uses less digits than its factorization.

501212227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154868.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 501212227 is about 22387.7695851999. The cubic root of 501212227 is about 794.3414384469.

The spelling of 501212227 in words is "five hundred one million, two hundred twelve thousand, two hundred twenty-seven".