70221341 has 4 divisors (see below), whose sum is σ = 70589184. Its totient is φ = 69853500.

The previous prime is 70221331. The next prime is 70221367. The reversal of 70221341 is 14312207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70221341 - 2¹⁰ = 70220317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70221311) 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, 183635 + ... + 184016.

It is an arithmetic number, because the mean of its divisors is an integer number (17647296).

Almost surely, 2^70221341 is an apocalyptic number.

It is an amenable number.

70221341 is a deficient number, since it is larger than the sum of its proper divisors (367843).

70221341 is a wasteful number, since it uses less digits than its factorization.

70221341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367842.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 70221341 is about 8379.8174801126. The cubic root of 70221341 is about 412.5624583722.

Adding to 70221341 its reverse (14312207), we get a palindrome (84533548).

The spelling of 70221341 in words is "seventy million, two hundred twenty-one thousand, three hundred forty-one".