221670034 has 8 divisors (see below), whose sum is σ = 341491788. Its totient is φ = 107839440.

The previous prime is 221670011. The next prime is 221670037. The reversal of 221670034 is 430076122.

221670034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 201554809 + 20115225 = 14197^2 + 4485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221670034² = 98275207947122312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221669990 and 221670008.

It is not an unprimeable number, because it can be changed into a prime (221670037) 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, 1497697 + ... + 1497844.

Almost surely, 2^221670034 is an apocalyptic number.

221670034 is a deficient number, since it is larger than the sum of its proper divisors (119821754).

221670034 is a wasteful number, since it uses less digits than its factorization.

221670034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995580.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 221670034 is about 14888.5873742273. The cubic root of 221670034 is about 605.2047518617.

The spelling of 221670034 in words is "two hundred twenty-one million, six hundred seventy thousand, thirty-four".