3012212011221 has 16 divisors (see below), whose sum is σ = 5100041500800. Its totient is φ = 1721264006304.

The previous prime is 3012212011201. The next prime is 3012212011247. The reversal of 3012212011221 is 1221102122103.

3012212011221 is a `hidden beast` number, since 301 + 22 + 120 + 1 + 1 + 221 = 666.

It is not a de Polignac number, because 3012212011221 - 2¹⁸ = 3012211749077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3012212011194 and 3012212011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012212011201) 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, 7968814656 + ... + 7968815033.

It is an arithmetic number, because the mean of its divisors is an integer number (318752593800).

Almost surely, 2^{3012212011221} is an apocalyptic number.

It is an amenable number.

3012212011221 is a deficient number, since it is larger than the sum of its proper divisors (2087829489579).

3012212011221 is a wasteful number, since it uses less digits than its factorization.

3012212011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15937629705 (or 15937629699 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 3012212011221 its reverse (1221102122103), we get a palindrome (4233314133324).

The spelling of 3012212011221 in words is "three trillion, twelve billion, two hundred twelve million, eleven thousand, two hundred twenty-one".