64212011 has 4 divisors (see below), whose sum is σ = 65578272. Its totient is φ = 62845752.

The previous prime is 64212007. The next prime is 64212047. The reversal of 64212011 is 11021246.

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 64212011 - 2² = 64212007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64242011) 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, 683060 + ... + 683153.

It is an arithmetic number, because the mean of its divisors is an integer number (16394568).

Almost surely, 2^64212011 is an apocalyptic number.

64212011 is a deficient number, since it is larger than the sum of its proper divisors (1366261).

64212011 is a wasteful number, since it uses less digits than its factorization.

64212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366260.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 64212011 is about 8013.2397318438. The cubic root of 64212011 is about 400.4412027547.

Adding to 64212011 its reverse (11021246), we get a palindrome (75233257).

The spelling of 64212011 in words is "sixty-four million, two hundred twelve thousand, eleven".