3011212222111 has 4 divisors (see below), whose sum is σ = 3018198793824. Its totient is φ = 3004225650400.

The previous prime is 3011212222103. The next prime is 3011212222133. The reversal of 3011212222111 is 1112222121103.

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 3011212222111 - 2³ = 3011212222103 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 (3011212222211) 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, 3493285210 + ... + 3493286071.

It is an arithmetic number, because the mean of its divisors is an integer number (754549698456).

Almost surely, 2^{3011212222111} is an apocalyptic number.

3011212222111 is a deficient number, since it is larger than the sum of its proper divisors (6986571713).

3011212222111 is an equidigital number, since it uses as much as digits as its factorization.

3011212222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986571712.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 3011212222111 its reverse (1112222121103), we get a palindrome (4123434343214).

It can be divided in two parts, 3011212 and 222111, that added together give a palindrome (3233323).

The spelling of 3011212222111 in words is "three trillion, eleven billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".