3012210311221 has 8 divisors (see below), whose sum is σ = 3013569909504. Its totient is φ = 3010851006000.

The previous prime is 3012210311213. The next prime is 3012210311287. The reversal of 3012210311221 is 1221130122103.

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 3012210311221 - 2³ = 3012210311213 is a prime.

It is a super-2 number, since 2×3012210311221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012210311021) 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, 21958596 + ... + 22095346.

It is an arithmetic number, because the mean of its divisors is an integer number (376696238688).

Almost surely, 2^{3012210311221} is an apocalyptic number.

It is an amenable number.

3012210311221 is a deficient number, since it is larger than the sum of its proper divisors (1359598283).

3012210311221 is a wasteful number, since it uses less digits than its factorization.

3012210311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146531.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 3012210311221 its reverse (1221130122103), we get a palindrome (4233340433324).

The spelling of 3012210311221 in words is "three trillion, twelve billion, two hundred ten million, three hundred eleven thousand, two hundred twenty-one".