11212705 has 16 divisors (see below), whose sum is σ = 15909120. Its totient is φ = 7422912.

The previous prime is 11212693. The next prime is 11212711. The reversal of 11212705 is 50721211.

11212705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11212705 - 2⁷ = 11212577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4509 + ... + 6538.

It is an arithmetic number, because the mean of its divisors is an integer number (994320).

Almost surely, 2^11212705 is an apocalyptic number.

It is an amenable number.

11212705 is a deficient number, since it is larger than the sum of its proper divisors (4696415).

11212705 is a wasteful number, since it uses less digits than its factorization.

11212705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 11212705 is about 3348.5377405668. The cubic root of 11212705 is about 223.8223572980.

Adding to 11212705 its reverse (50721211), we get a palindrome (61933916).

The spelling of 11212705 in words is "eleven million, two hundred twelve thousand, seven hundred five".