42211205 has 8 divisors (see below), whose sum is σ = 50688504. Its totient is φ = 33745600.

The previous prime is 42211171. The next prime is 42211219. The reversal of 42211205 is 50211224.

It can be written as a sum of positive squares in 4 ways, for example, as 15108769 + 27102436 = 3887^2 + 5206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42211205 - 2¹⁴ = 42194821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11495 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (6336063).

Almost surely, 2^42211205 is an apocalyptic number.

It is an amenable number.

42211205 is a deficient number, since it is larger than the sum of its proper divisors (8477299).

42211205 is a wasteful number, since it uses less digits than its factorization.

42211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42211205 is about 6497.0150838674. The cubic root of 42211205 is about 348.1843526018.

Adding to 42211205 its reverse (50211224), we get a palindrome (92422429).

The spelling of 42211205 in words is "forty-two million, two hundred eleven thousand, two hundred five".