212021310011 has 32 divisors (see below), whose sum is σ = 247939843968. Its totient is φ = 177562644480.

The previous prime is 212021309963. The next prime is 212021310013. The reversal of 212021310011 is 110013120212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021310011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021310013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36470741 + ... + 36476553.

It is an arithmetic number, because the mean of its divisors is an integer number (7748120124).

Almost surely, 2^212021310011 is an apocalyptic number.

212021310011 is a deficient number, since it is larger than the sum of its proper divisors (35918533957).

212021310011 is a wasteful number, since it uses less digits than its factorization.

212021310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212021310011 its reverse (110013120212), we get a palindrome (322034430223).

The spelling of 212021310011 in words is "two hundred twelve billion, twenty-one million, three hundred ten thousand, eleven".