211010212012211 has 4 divisors (see below), whose sum is σ = 223422577424712. Its totient is φ = 198597846599712.

The previous prime is 211010212012151. The next prime is 211010212012289. The reversal of 211010212012211 is 112210212010112.

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 211010212012211 - 2²² = 211010207817907 is a prime.

It is a super-2 number, since 2×211010212012211² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 12412365412483 = 211010212012211 / (2 + 1 + 1 + 0 + 1 + 0 + 2 + 1 + 2 + 0 + 1 + 2 + 2 + 1 + 1).

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 211010212012211.

It is not an unprimeable number, because it can be changed into a prime (211010212062211) 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, 6206182706225 + ... + 6206182706258.

It is an arithmetic number, because the mean of its divisors is an integer number (55855644356178).

Almost surely, 2^{211010212012211} is an apocalyptic number.

211010212012211 is a deficient number, since it is larger than the sum of its proper divisors (12412365412501).

211010212012211 is a wasteful number, since it uses less digits than its factorization.

211010212012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12412365412500.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211010212012211 its reverse (112210212010112), we get a palindrome (323220424022323).

The spelling of 211010212012211 in words is "two hundred eleven trillion, ten billion, two hundred twelve million, twelve thousand, two hundred eleven".