3123102212221 has 8 divisors (see below), whose sum is σ = 3145952411840. Its totient is φ = 3100257467712.

The previous prime is 3123102212183. The next prime is 3123102212273. The reversal of 3123102212221 is 1222122013213.

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 3123102212221 - 2¹⁷ = 3123102081149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3123102212192 and 3123102212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123102212621) 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, 211020 + ... + 2508133.

It is an arithmetic number, because the mean of its divisors is an integer number (393244051480).

Almost surely, 2^{3123102212221} is an apocalyptic number.

It is an amenable number.

3123102212221 is a deficient number, since it is larger than the sum of its proper divisors (22850199619).

3123102212221 is a wasteful number, since it uses less digits than its factorization.

3123102212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727555.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3123102212221 its reverse (1222122013213), we get a palindrome (4345224225434).

The spelling of 3123102212221 in words is "three trillion, one hundred twenty-three billion, one hundred two million, two hundred twelve thousand, two hundred twenty-one".