35022221 has 4 divisors (see below), whose sum is σ = 37716252. Its totient is φ = 32328192.

The previous prime is 35022217. The next prime is 35022257. The reversal of 35022221 is 12222053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20475625 + 14546596 = 4525^2 + 3814^2 .

It is not a de Polignac number, because 35022221 - 2² = 35022217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 35022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35022271) 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, 1346996 + ... + 1347021.

It is an arithmetic number, because the mean of its divisors is an integer number (9429063).

Almost surely, 2^35022221 is an apocalyptic number.

It is an amenable number.

35022221 is a deficient number, since it is larger than the sum of its proper divisors (2694031).

35022221 is a wasteful number, since it uses less digits than its factorization.

35022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694030.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 35022221 is about 5917.9575023821. The cubic root of 35022221 is about 327.1758414830.

Adding to 35022221 its reverse (12222053), we get a palindrome (47244274).

The spelling of 35022221 in words is "thirty-five million, twenty-two thousand, two hundred twenty-one".