2031107221 has 8 divisors (see below), whose sum is σ = 2386196064. Its totient is φ = 1704425520.

The previous prime is 2031107219. The next prime is 2031107261. The reversal of 2031107221 is 1227011302.

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

It is a cyclic number.

It is not a de Polignac number, because 2031107221 - 2¹ = 2031107219 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 (2031107261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101631 + ... + 7101916.

It is an arithmetic number, because the mean of its divisors is an integer number (298274508).

Almost surely, 2^2031107221 is an apocalyptic number.

It is an amenable number.

2031107221 is a deficient number, since it is larger than the sum of its proper divisors (355088843).

2031107221 is a wasteful number, since it uses less digits than its factorization.

2031107221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14203571.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2031107221 is about 45067.8069246774. The cubic root of 2031107221 is about 1266.4195806673.

Adding to 2031107221 its reverse (1227011302), we get a palindrome (3258118523).

The spelling of 2031107221 in words is "two billion, thirty-one million, one hundred seven thousand, two hundred twenty-one".