3123212220111 has 8 divisors (see below), whose sum is σ = 4345338741120. Its totient is φ = 1991613589592.

The previous prime is 3123212220053. The next prime is 3123212220173. The reversal of 3123212220111 is 1110222123213.

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 3123212220111 - 2⁷ = 3123212219983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123212220211) 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, 22631972541 + ... + 22631972678.

It is an arithmetic number, because the mean of its divisors is an integer number (543167342640).

Almost surely, 2^{3123212220111} is an apocalyptic number.

3123212220111 is a deficient number, since it is larger than the sum of its proper divisors (1222126521009).

3123212220111 is a wasteful number, since it uses less digits than its factorization.

3123212220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45263945245.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3123212220111 its reverse (1110222123213), we get a palindrome (4233434343324).

The spelling of 3123212220111 in words is "three trillion, one hundred twenty-three billion, two hundred twelve million, two hundred twenty thousand, one hundred eleven".