3140420221 has 2 divisors, whose sum is σ = 3140420222. Its totient is φ = 3140420220.

The previous prime is 3140420209. The next prime is 3140420233. The reversal of 3140420221 is 1220240413.

It is a balanced prime because it is at equal distance from previous prime (3140420209) and next prime (3140420233).

It can be written as a sum of positive squares in only one way, i.e., 2513919321 + 626500900 = 50139^2 + 25030^2 .

It is a cyclic number.

It is not a de Polignac number, because 3140420221 - 2⁷ = 3140420093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3140420021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570210110 + 1570210111.

It is an arithmetic number, because the mean of its divisors is an integer number (1570210111).

Almost surely, 2^3140420221 is an apocalyptic number.

It is an amenable number.

3140420221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3140420221 is an equidigital number, since it uses as much as digits as its factorization.

3140420221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3140420221 is about 56039.4523617067. The cubic root of 3140420221 is about 1464.4096711824.

Adding to 3140420221 its reverse (1220240413), we get a palindrome (4360660634).

The spelling of 3140420221 in words is "three billion, one hundred forty million, four hundred twenty thousand, two hundred twenty-one".