34111221 has 32 divisors (see below), whose sum is σ = 49230720. Its totient is φ = 20966400.

The previous prime is 34111201. The next prime is 34111247. The reversal of 34111221 is 12211143.

It is not a de Polignac number, because 34111221 - 2¹⁵ = 34078453 is a prime.

It is a super-2 number, since 2×34111221² = 2327150796221682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34111201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260326 + ... + 260456.

It is an arithmetic number, because the mean of its divisors is an integer number (1538460).

Almost surely, 2^34111221 is an apocalyptic number.

It is an amenable number.

34111221 is a deficient number, since it is larger than the sum of its proper divisors (15119499).

34111221 is a wasteful number, since it uses less digits than its factorization.

34111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 48, while the sum is 15.

The square root of 34111221 is about 5840.4812301727. The cubic root of 34111221 is about 324.3140435501.

Adding to 34111221 its reverse (12211143), we get a palindrome (46322364).

The spelling of 34111221 in words is "thirty-four million, one hundred eleven thousand, two hundred twenty-one".