3140412221 has 4 divisors (see below), whose sum is σ = 3141660444. Its totient is φ = 3139164000.

The previous prime is 3140412211. The next prime is 3140412239. The reversal of 3140412221 is 1222140413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1222140413 = 13 ⋅94010801.

It can be written as a sum of positive squares in 2 ways, for example, as 255648121 + 2884764100 = 15989^2 + 53710^2 .

It is a cyclic number.

It is not a de Polignac number, because 3140412221 - 2¹⁴ = 3140395837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3140412193 and 3140412202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140412211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620330 + ... + 625371.

It is an arithmetic number, because the mean of its divisors is an integer number (785415111).

Almost surely, 2^3140412221 is an apocalyptic number.

It is an amenable number.

3140412221 is a deficient number, since it is larger than the sum of its proper divisors (1248223).

3140412221 is a wasteful number, since it uses less digits than its factorization.

3140412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248222.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3140412221 is about 56039.3809833763. The cubic root of 3140412221 is about 1464.4084276878.

Adding to 3140412221 its reverse (1222140413), we get a palindrome (4362552634).

The spelling of 3140412221 in words is "three billion, one hundred forty million, four hundred twelve thousand, two hundred twenty-one".