7033211221 has 2 divisors, whose sum is σ = 7033211222. Its totient is φ = 7033211220.

The previous prime is 7033211201. The next prime is 7033211243. The reversal of 7033211221 is 1221123307.

It is a happy number.

It is an a-pointer prime, because the next prime (7033211243) can be obtained adding 7033211221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4649330596 + 2383880625 = 68186^2 + 48825^2 .

It is a cyclic number.

It is not a de Polignac number, because 7033211221 - 2⁵ = 7033211189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7033211192 and 7033211201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7033211201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3516605610 + 3516605611.

It is an arithmetic number, because the mean of its divisors is an integer number (3516605611).

Almost surely, 2^7033211221 is an apocalyptic number.

It is an amenable number.

7033211221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7033211221 is an equidigital number, since it uses as much as digits as its factorization.

7033211221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7033211221 is about 83864.2428034738. The cubic root of 7033211221 is about 1915.9516861618.

Adding to 7033211221 its reverse (1221123307), we get a palindrome (8254334528).

The spelling of 7033211221 in words is "seven billion, thirty-three million, two hundred eleven thousand, two hundred twenty-one".