211012201121111 has 8 divisors (see below), whose sum is σ = 227324009013024. Its totient is φ = 194711836102560.

The previous prime is 211012201121063. The next prime is 211012201121123. The reversal of 211012201121111 is 111121102210112.

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 211012201121111 - 2¹⁰ = 211012201120087 is a prime.

It is a super-2 number, since 2×211012201121111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211012201121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012201121191) 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, 2860680035 + ... + 2860753796.

It is an arithmetic number, because the mean of its divisors is an integer number (28415501126628).

Almost surely, 2^{211012201121111} is an apocalyptic number.

211012201121111 is a deficient number, since it is larger than the sum of its proper divisors (16311807891913).

211012201121111 is a wasteful number, since it uses less digits than its factorization.

211012201121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721436681.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211012201121111 its reverse (111121102210112), we get a palindrome (322133303331223).

The spelling of 211012201121111 in words is "two hundred eleven trillion, twelve billion, two hundred one million, one hundred twenty-one thousand, one hundred eleven".