2072207221 has 16 divisors (see below), whose sum is σ = 2397896064. Its totient is φ = 1754049024.

The previous prime is 2072207213. The next prime is 2072207227. The reversal of 2072207221 is 1227022702.

It is not a de Polignac number, because 2072207221 - 2³ = 2072207213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072207227) 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, 219225 + ... + 228481.

It is an arithmetic number, because the mean of its divisors is an integer number (149868504).

Almost surely, 2^2072207221 is an apocalyptic number.

It is an amenable number.

2072207221 is a deficient number, since it is larger than the sum of its proper divisors (325688843).

2072207221 is a wasteful number, since it uses less digits than its factorization.

2072207221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 2072207221 is about 45521.5028420636. The cubic root of 2072207221 is about 1274.9047158833.

Adding to 2072207221 its reverse (1227022702), we get a palindrome (3299229923).

The spelling of 2072207221 in words is "two billion, seventy-two million, two hundred seven thousand, two hundred twenty-one".