35220231 has 16 divisors (see below), whose sum is σ = 52324320. Its totient is φ = 23414400.

The previous prime is 35220223. The next prime is 35220233. The reversal of 35220231 is 13202253.

It is not a de Polignac number, because 35220231 - 2³ = 35220223 is a prime.

It is a super-2 number, since 2×35220231² = 2480929343386722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35220233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9201 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (3270270).

Almost surely, 2^35220231 is an apocalyptic number.

35220231 is a deficient number, since it is larger than the sum of its proper divisors (17104089).

35220231 is a wasteful number, since it uses less digits than its factorization.

35220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 35220231 is about 5934.6635119440. The cubic root of 35220231 is about 327.7912829147.

Adding to 35220231 its reverse (13202253), we get a palindrome (48422484).

The spelling of 35220231 in words is "thirty-five million, two hundred twenty thousand, two hundred thirty-one".