3111220312211 has 8 divisors (see below), whose sum is σ = 3541626284544. Its totient is φ = 2705408966920.

The previous prime is 3111220312171. The next prime is 3111220312217. The reversal of 3111220312211 is 1122130221113.

3111220312211 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3111220312211 - 2²² = 3111216117907 is a prime.

It is a super-2 number, since 2×3111220312211² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111220312217) 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, 6148656491 + ... + 6148656996.

It is an arithmetic number, because the mean of its divisors is an integer number (442703285568).

Almost surely, 2^{3111220312211} is an apocalyptic number.

3111220312211 is a deficient number, since it is larger than the sum of its proper divisors (430405972333).

3111220312211 is a wasteful number, since it uses less digits than its factorization.

3111220312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297313521.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3111220312211 its reverse (1122130221113), we get a palindrome (4233350533324).

The spelling of 3111220312211 in words is "three trillion, one hundred eleven billion, two hundred twenty million, three hundred twelve thousand, two hundred eleven".