712212105 has 32 divisors (see below), whose sum is σ = 1255471488. Its totient is φ = 341888000.

The previous prime is 712212101. The next prime is 712212133. The reversal of 712212105 is 501212217.

It is not a de Polignac number, because 712212105 - 2² = 712212101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (712212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4704 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (39233484).

Almost surely, 2^712212105 is an apocalyptic number.

It is an amenable number.

712212105 is a deficient number, since it is larger than the sum of its proper divisors (543259383).

712212105 is a wasteful number, since it uses less digits than its factorization.

712212105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42857.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 712212105 is about 26687.3023177690. The cubic root of 712212105 is about 893.0376802346.

The spelling of 712212105 in words is "seven hundred twelve million, two hundred twelve thousand, one hundred five".