35042221 has 4 divisors (see below), whose sum is σ = 35318272. Its totient is φ = 34766172.

The previous prime is 35042201. The next prime is 35042233. The reversal of 35042221 is 12224053.

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 35042221 - 2¹³ = 35034029 is a prime.

It is a super-2 number, since 2×35042221² = 2455914505225682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35042201) 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, 137835 + ... + 138088.

It is an arithmetic number, because the mean of its divisors is an integer number (8829568).

Almost surely, 2^35042221 is an apocalyptic number.

It is an amenable number.

35042221 is a deficient number, since it is larger than the sum of its proper divisors (276051).

35042221 is a wasteful number, since it uses less digits than its factorization.

35042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276050.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 35042221 is about 5919.6470333965. The cubic root of 35042221 is about 327.2381092990.

Adding to 35042221 its reverse (12224053), we get a palindrome (47266274).

The spelling of 35042221 in words is "thirty-five million, forty-two thousand, two hundred twenty-one".