712420221 has 8 divisors (see below), whose sum is σ = 965993760. Its totient is φ = 466896752.

The previous prime is 712420187. The next prime is 712420243. The reversal of 712420221 is 122024217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712420221 - 2²⁶ = 645311357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712420271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012310 + ... + 2012663.

It is an arithmetic number, because the mean of its divisors is an integer number (120749220).

Almost surely, 2^712420221 is an apocalyptic number.

It is an amenable number.

712420221 is a deficient number, since it is larger than the sum of its proper divisors (253573539).

712420221 is a wasteful number, since it uses less digits than its factorization.

712420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025035.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 712420221 is about 26691.2011906546. The cubic root of 712420221 is about 893.1246568195.

Adding to 712420221 its reverse (122024217), we get a palindrome (834444438).

The spelling of 712420221 in words is "seven hundred twelve million, four hundred twenty thousand, two hundred twenty-one".