3012210121 has 4 divisors (see below), whose sum is σ = 3012329412. Its totient is φ = 3012090832.

The previous prime is 3012210067. The next prime is 3012210137. The reversal of 3012210121 is 1210122103.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 762036025 + 2250174096 = 27605^2 + 47436^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012210121 - 2¹⁵ = 3012177353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012210221) 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 3 ways as a sum of consecutive naturals, for example, 5206 + ... + 77791.

It is an arithmetic number, because the mean of its divisors is an integer number (753082353).

Almost surely, 2^3012210121 is an apocalyptic number.

It is an amenable number.

3012210121 is a deficient number, since it is larger than the sum of its proper divisors (119291).

3012210121 is an equidigital number, since it uses as much as digits as its factorization.

3012210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119290.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3012210121 is about 54883.6052113926. The cubic root of 3012210121 is about 1444.2035930238.

Adding to 3012210121 its reverse (1210122103), we get a palindrome (4222332224).

The spelling of 3012210121 in words is "three billion, twelve million, two hundred ten thousand, one hundred twenty-one".