3223013211221 has 2 divisors, whose sum is σ = 3223013211222. Its totient is φ = 3223013211220.

The previous prime is 3223013211169. The next prime is 3223013211247. The reversal of 3223013211221 is 1221123103223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2012111043121 + 1210902168100 = 1418489^2 + 1100410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3223013211221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3223013213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611506605610 + 1611506605611.

It is an arithmetic number, because the mean of its divisors is an integer number (1611506605611).

Almost surely, 2^{3223013211221} is an apocalyptic number.

It is an amenable number.

3223013211221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3223013211221 is an equidigital number, since it uses as much as digits as its factorization.

3223013211221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3223013211221 its reverse (1221123103223), we get a palindrome (4444136314444).

The spelling of 3223013211221 in words is "three trillion, two hundred twenty-three billion, thirteen million, two hundred eleven thousand, two hundred twenty-one".