3102022211221 has 8 divisors (see below), whose sum is σ = 3130620486840. Its totient is φ = 3073426469568.

The previous prime is 3102022211201. The next prime is 3102022211227. The reversal of 3102022211221 is 1221122202013.

It can be written as a sum of positive squares in 4 ways, for example, as 856894570596 + 2245127640625 = 925686^2 + 1498375^2 .

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 3102022211221 - 2¹⁷ = 3102022080149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102022211227) 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, 1871595 + ... + 3115591.

It is an arithmetic number, because the mean of its divisors is an integer number (391327560855).

Almost surely, 2^{3102022211221} is an apocalyptic number.

It is an amenable number.

3102022211221 is a deficient number, since it is larger than the sum of its proper divisors (28598275619).

3102022211221 is a wasteful number, since it uses less digits than its factorization.

3102022211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266983.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 3102022211221 its reverse (1221122202013), we get a palindrome (4323144413234).

The spelling of 3102022211221 in words is "three trillion, one hundred two billion, twenty-two million, two hundred eleven thousand, two hundred twenty-one".