3012100011221 has 16 divisors (see below), whose sum is σ = 3581425090560. Its totient is φ = 2478842760240.

The previous prime is 3012100011191. The next prime is 3012100011227. The reversal of 3012100011221 is 1221100012103.

It is not a de Polignac number, because 3012100011221 - 2⁶ = 3012100011157 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 = 3012100011196 and 3012100011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012100011227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54620651 + ... + 54675768.

It is an arithmetic number, because the mean of its divisors is an integer number (223839068160).

Almost surely, 2^{3012100011221} is an apocalyptic number.

3012100011221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3012100011221 is a deficient number, since it is larger than the sum of its proper divisors (569325079339).

3012100011221 is a wasteful number, since it uses less digits than its factorization.

3012100011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109296584.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 3012100011221 its reverse (1221100012103), we get a palindrome (4233200023324).

The spelling of 3012100011221 in words is "three trillion, twelve billion, one hundred million, eleven thousand, two hundred twenty-one".