3122212121 has 8 divisors (see below), whose sum is σ = 3569522880. Its totient is φ = 2675221488.

The previous prime is 3122212109. The next prime is 3122212141. The reversal of 3122212121 is 1212122213.

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 3122212121 - 2¹⁴ = 3122195737 is a prime.

3122212121 is a modest number, since divided by 212121 gives 3122 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3122212121.

It is not an unprimeable number, because it can be changed into a prime (3122212141) 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, 58751 + ... + 98468.

It is an arithmetic number, because the mean of its divisors is an integer number (446190360).

Almost surely, 2^3122212121 is an apocalyptic number.

It is an amenable number.

3122212121 is a deficient number, since it is larger than the sum of its proper divisors (447310759).

3122212121 is a wasteful number, since it uses less digits than its factorization.

3122212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160063.

The product of its digits is 96, while the sum is 17.

The square root of 3122212121 is about 55876.7583258013. The cubic root of 3122212121 is about 1461.5739766806.

Adding to 3122212121 its reverse (1212122213), we get a palindrome (4334334334).

The spelling of 3122212121 in words is "three billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".