3122121 has 8 divisors (see below), whose sum is σ = 4173120. Its totient is φ = 2076272.

The previous prime is 3122117. The next prime is 3122143. The reversal of 3122121 is 1212213.

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 3122121 - 2² = 3122117 is a prime.

3122121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3122097 and 3122106.

It is not an unprimeable number, because it can be changed into a prime (3122321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (521640).

Almost surely, 2^3122121 is an apocalyptic number.

It is an amenable number.

3122121 is a deficient number, since it is larger than the sum of its proper divisors (1050999).

3122121 is a wasteful number, since it uses less digits than its factorization.

3122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575.

The product of its digits is 24, while the sum is 12.

The square root of 3122121 is about 1766.9524611602. The cubic root of 3122121 is about 146.1559757982.

Adding to 3122121 its reverse (1212213), we get a palindrome (4334334).

It can be divided in two parts, 312212 and 1, that added together give a palindrome (312213).

The spelling of 3122121 in words is "three million, one hundred twenty-two thousand, one hundred twenty-one".