7354142221 has 2 divisors, whose sum is σ = 7354142222. Its totient is φ = 7354142220.

The previous prime is 7354142197. The next prime is 7354142269. The reversal of 7354142221 is 1222414537.

It is a happy number.

7354142221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4223180196 + 3130962025 = 64986^2 + 55955^2 .

It is a cyclic number.

It is not a de Polignac number, because 7354142221 - 2¹¹ = 7354140173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7354142281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3677071110 + 3677071111.

It is an arithmetic number, because the mean of its divisors is an integer number (3677071111).

Almost surely, 2^7354142221 is an apocalyptic number.

It is an amenable number.

7354142221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7354142221 is an equidigital number, since it uses as much as digits as its factorization.

7354142221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 7354142221 is about 85756.2955181717. The cubic root of 7354142221 is about 1944.6614638029.

Adding to 7354142221 its reverse (1222414537), we get a palindrome (8576556758).

The spelling of 7354142221 in words is "seven billion, three hundred fifty-four million, one hundred forty-two thousand, two hundred twenty-one".