2011212222211 has 8 divisors (see below), whose sum is σ = 2018531892464. Its totient is φ = 2003892976800.

The previous prime is 2011212222121. The next prime is 2011212222241. The reversal of 2011212222211 is 1122222121102.

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 2011212222211 - 2¹⁷ = 2011212091139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011212222241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11798956 + ... + 11968198.

It is an arithmetic number, because the mean of its divisors is an integer number (252316486558).

Almost surely, 2^{2011212222211} is an apocalyptic number.

2011212222211 is a deficient number, since it is larger than the sum of its proper divisors (7319670253).

2011212222211 is a wasteful number, since it uses less digits than its factorization.

2011212222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212421.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2011212222211 its reverse (1122222121102), we get a palindrome (3133434343313).

The spelling of 2011212222211 in words is "two trillion, eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred eleven".