34202221 has 4 divisors (see below), whose sum is σ = 34226944. Its totient is φ = 34177500.

The previous prime is 34202213. The next prime is 34202257. The reversal of 34202221 is 12220243.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12220243 = 7 ⋅1745749.

It is a cyclic number.

It is not a de Polignac number, because 34202221 - 2³ = 34202213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34202195 and 34202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34202291) 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, 10155 + ... + 13096.

It is an arithmetic number, because the mean of its divisors is an integer number (8556736).

Almost surely, 2^34202221 is an apocalyptic number.

It is an amenable number.

34202221 is a deficient number, since it is larger than the sum of its proper divisors (24723).

34202221 is a wasteful number, since it uses less digits than its factorization.

34202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24722.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 34202221 is about 5848.2664952958. The cubic root of 34202221 is about 324.6021830725.

Adding to 34202221 its reverse (12220243), we get a palindrome (46422464).

The spelling of 34202221 in words is "thirty-four million, two hundred two thousand, two hundred twenty-one".