212011010021111 has 8 divisors (see below), whose sum is σ = 242996563155840. Its totient is φ = 181200023383608.

The previous prime is 212011010021101. The next prime is 212011010021147. The reversal of 212011010021111 is 111120010110212.

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 212011010021111 - 2¹⁸ = 212011009758967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011010021101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43641621701 + ... + 43641626558.

It is an arithmetic number, because the mean of its divisors is an integer number (30374570394480).

Almost surely, 2^{212011010021111} is an apocalyptic number.

212011010021111 is a deficient number, since it is larger than the sum of its proper divisors (30985553134729).

212011010021111 is an equidigital number, since it uses as much as digits as its factorization.

212011010021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87283248613.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212011010021111 its reverse (111120010110212), we get a palindrome (323131020131323).

The spelling of 212011010021111 in words is "two hundred twelve trillion, eleven billion, ten million, twenty-one thousand, one hundred eleven".