2070221 has 4 divisors (see below), whose sum is σ = 2179200. Its totient is φ = 1961244.

The previous prime is 2070217. The next prime is 2070239. The reversal of 2070221 is 1220702.

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 2070221 - 2² = 2070217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2070196 and 2070205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070241) 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, 54461 + ... + 54498.

It is an arithmetic number, because the mean of its divisors is an integer number (544800).

2^2070221 is an apocalyptic number.

It is an amenable number.

2070221 is a deficient number, since it is larger than the sum of its proper divisors (108979).

2070221 is a wasteful number, since it uses less digits than its factorization.

2070221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108978.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2070221 is about 1438.8262577532. The cubic root of 2070221 is about 127.4497251485.

Adding to 2070221 its reverse (1220702), we get a palindrome (3290923).

The spelling of 2070221 in words is "two million, seventy thousand, two hundred twenty-one".