3012220121 has 8 divisors (see below), whose sum is σ = 3127367424. Its totient is φ = 2898196560.

The previous prime is 3012220117. The next prime is 3012220129. The reversal of 3012220121 is 1210222103.

It is a happy number.

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 3012220121 - 2² = 3012220117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3012220096 and 3012220105.

It is not an unprimeable number, because it can be changed into a prime (3012220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275471 + ... + 286196.

It is an arithmetic number, because the mean of its divisors is an integer number (390920928).

Almost surely, 2^3012220121 is an apocalyptic number.

3012220121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3012220121 is a deficient number, since it is larger than the sum of its proper divisors (115147303).

3012220121 is a wasteful number, since it uses less digits than its factorization.

3012220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561871.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3012220121 is about 54883.6963132040. The cubic root of 3012220121 is about 1444.2051911881.

Adding to 3012220121 its reverse (1210222103), we get a palindrome (4222442224).

The spelling of 3012220121 in words is "three billion, twelve million, two hundred twenty thousand, one hundred twenty-one".